A rechargeable range hood without connecting wires

Abstract

The present invention discloses a rechargeable range hood without connecting wires, comprising a range hood body, a fan assembly, a movable baffle, a movable driving mechanism, an operating assembly arranged on the movable baffle, and a control assembly arranged on the range hood body, wherein the movable driving mechanism is used to drive the movable baffle to rotate, the operating assembly comprises a wireless signal transmitter, an operator, a battery, and a first charging plug, the operator is electrically connected to the battery, the wireless signal transmitter, and the first charging plug, and the first charging plug is fixed to the movable baffle; the control assembly comprises a controller, a wireless signal receiver, a second charging plug, and a power source, and the controller is electrically connected to the power source, the wireless signal receiver, the second charging plug, and the fan assembly. The connecting wire between the movable baffle and the range hood body is omitted by plugging and separating the second charging plug and the first charging plug, the power supply of the battery, and the wireless transmission between the wireless signal receiver and the wireless signal transmitter.

Description

Technical Field

[0001] The invention relates to the field of kitchen appliances, and in particular to a rechargeable range hood without connecting wires. Background Art

[0002] As the quality of life improves, people's experience of using range hoods is also improving. Various elements such as beauty, practicality, fashion, and technology must be taken into account. In order to make the range hood more beautiful and improve the smoking effect, the existing range hood is generally equipped with a movable baffle on the front side. The movable baffle can not only play a smoke-collecting effect, but also cover the smoking port, and the baffle can be used as a control panel. However, the current movable baffle has the problem of difficulty in arranging the electrical connection wires. In the range hood, a certain length of the connection wire needs to be reserved to avoid the connection wire being broken, and the reserved connection wire may interfere with the movable baffle, which poses a safety hazard and easily causes the connection wire to break; at the same time, the connection wire is exposed outside, which also affects the appearance. Summary of the invention

[0003] The object of the present invention is to provide a rechargeable range hood without connecting wires, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] A rechargeable range hood without connecting wires, comprising: a range hood body, a fan assembly, a movable baffle, a movable driving mechanism, an operating assembly and a control assembly, wherein the range hood body is provided with a smoke passage, and the smoke passage is provided with a smoke inlet and a smoke outlet; the fan assembly is arranged on the range hood body, the fan assembly is communicated with the smoke passage, and the movable baffle is arranged on the smoke inlet; the movable driving mechanism has a driving end which is transmission-connected with the movable baffle and drives the movable baffle to rotate so as to open and close the smoke inlet; the operating assembly is arranged on the movable baffle, the operating assembly comprises a wireless signal transmitter, an operator, a battery, and a first charging plug, the operator is electrically connected to the battery, the wireless signal transmitter, and the first charging plug at the same time, the first charging plug is fixed on the movable baffle, and the battery is used for for supplying power to the operator, the operator is configured to detect the power level of the battery and operate the range hood; the control component is arranged on the range hood body, the control component includes a controller, a wireless signal receiver, a second charging plug, and a power supply, the controller is electrically connected to the power supply, the wireless signal receiver, the second charging plug and the fan assembly at the same time, the second charging plug is fixed on the range hood body, the second charging plug can be plugged with the first charging plug, the wireless signal receiver is used to receive the signal transmitted by the wireless signal transmitter and transmit the signal to the controller, the controller is configured to control the speed or start and stop of the fan assembly after receiving the signal transmitted by the wireless signal receiver, and control the power supply to supply power to the second charging plug.

[0006] The beneficial effects of the present invention are as follows: when the movable baffle at the driving end of the movable driving mechanism rotates to open the smoking port, the second charging plug is separated from the first charging plug, and the battery supplies power to the operator at this time. When people operate the range hood through the operator, the operator transmits the operation signal to the wireless signal transmitter, and the wireless signal transmitter transmits the operation signal to the wireless signal receiver in a wireless manner. Then the wireless signal receiver transmits the signal to the controller, and the controller controls the speed or start and stop of the fan assembly, thereby realizing wireless signal transmission between the controller and the operator; when the movable baffle at the driving end of the movable driving mechanism rotates to close the smoking port, the second charging plug is in a plugged-in state with the first charging plug. When the operator detects that the battery power is insufficient, the controller can control the power supply to supply power to the second charging plug through the above-mentioned signal transmission method, thereby charging the battery; through the plugging and separation of the second charging plug and the first charging plug, the power supply of the battery, and the wireless transmission of the signal between the wireless signal receiver and the wireless signal transmitter, the connecting wire between the movable baffle and the range hood body is omitted, and the opening and closing angles and opening and closing forms of the movable baffle can be diversified.

[0007] As a further improvement of the above technical solution, a panel is provided on the front side of the range hood body and is inclined downward from the front to the back. The smoking port is provided on the panel. The upper edge of the movable baffle is hinged to the upper part of the outer side of the panel. A rotation axis extending left and right is provided on the upper edge of the movable baffle. The driving end can drive the movable baffle to rotate around the rotation axis. The first charging plug and the second charging plug are arranged on a circle with the same radius with the rotation axis as the center line.

[0008] When the movable baffle rotates forward to form a certain angle with the panel, the first charging plug is separated from the second charging plug. At this time, the movable baffle can guide and gather the oil smoke; at the same time, the operator is fixed on the movable baffle, and the movable baffle can also be used as an operating panel.

[0009] As a further improvement of the above technical solution, the movable driving mechanism is an electrically controlled driving mechanism, the controller is electrically connected to the electrically controlled driving mechanism, and the controller is configured to control the electrically controlled driving mechanism to drive the rotation of the movable baffle after receiving the signal transmitted by the wireless signal receiver.

[0010] When the operator detects that the battery is low on power, it can transmit a signal to the controller, which then controls the electric control drive mechanism to drive the movable baffle to rotate to close the smoking port, so that the second charging plug is plugged into the first charging plug, and controls the power supply to supply power to the second charging plug to charge the battery, while stopping the operation of the fan assembly; when the battery is sufficiently charged, the controller controls the electric control drive mechanism to drive the movable baffle to rotate to open the smoking port.

[0011] As a further improvement of the above technical solution, the movable driving mechanism includes an electric push rod, one end of which is movably connected to the range hood body, the other end of which is movably connected to the movable baffle, and the electric push rod is electrically connected to the controller. In this solution, the movable baffle is driven to rotate by the telescopic action of the electric push rod.

[0012] As a further improvement of the above technical solution, the present invention further comprises a lighting assembly, wherein the lighting assembly is arranged on the movable baffle, and the lighting assembly is electrically connected to the operator.

[0013] The lighting component can provide lighting function for the range hood, and when the lighting component is installed on the movable baffle, the battery supplies power to the lighting component.

[0014] As a further improvement of the above technical solution, the first charging plug includes a charging head base and a charging head contact piece, the charging head base is fixed to the back of the movable baffle, and the charging head contact piece is arranged on the side wall of the charging head contact piece; the second charging plug includes a charging seat base and a charging seat contact piece, the charging seat base is provided with a slot that can be matched with the charging head base, the charging seat contact piece is arranged in the slot, and the charging seat contact piece can contact the charging head contact piece.

[0015] When the movable baffle is in a closed state, the charging head base is inserted into the slot, and the charging seat contact piece contacts the charging head contact piece, thereby realizing the electrical connection between the first charging plug and the second charging plug.

[0016] As a further improvement of the above technical solution, the second charging plug also includes a sliding block and a reset elastic member. The sliding block can be slidably installed in the slot, the charging seat contact piece is arranged on the side wall of the slot, and the reset elastic member is arranged between the sliding block and the slot. The reset elastic member can push the sliding block to cover the charging seat contact piece.

[0017] When the second charging plug is separated from the first charging plug, under the action of the reset elastic member, the reset elastic member can push the sliding block to cover the charging seat contact piece, thereby preventing oil smoke from sticking to the charging seat contact piece to cause poor contact or leakage, thereby improving safety performance.

[0018] As a further improvement of the above technical solution, the return elastic member is a return spring, which is arranged between the bottom of the slot and the bottom surface of the sliding block, one end of the return spring abuts against the bottom surface of the sliding block, and the other end of the return spring abuts against the bottom of the slot.

[0019] Under the action of the return spring, the sliding block can be kept in the notch of the slot in a free state. Correspondingly, a limiting structure is provided at the notch of the slot to limit the sliding block, that is, to prevent the sliding block from being pushed out of the notch of the slot. When the second charging plug is plugged into the first charging plug, the charging head base pushes the sliding block into the slot until the charging seat contact piece contacts the charging head contact piece.

[0020] As a further improvement of the above technical solution, a first limiting countersunk hole is provided at the bottom of the slot, a second limiting countersunk hole is provided at the bottom surface of the sliding block, and the two ends of the reset spring are respectively provided in the first limiting countersunk hole and the second limiting countersunk hole. The first limiting countersunk hole and the second limiting countersunk hole play a role in limiting and fixing the reset spring, so as to prevent the reset spring from shifting and causing the sliding block to get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1 This is a schematic structural diagram of a range hood provided by the present invention, when a movable baffle is opened;

[0023] Figure 2 This is a structural schematic diagram of a range hood provided by the present invention, when a movable baffle is closed;

[0024] Figure 3 It is a structural schematic diagram of a first charging plug and a second charging plug provided by the present invention when the two are separated in one embodiment;

[0025] Figure 4 This is a structural schematic diagram of a first charging plug and a second charging plug provided by the present invention when the two are plugged in according to one embodiment of the present invention;

[0026] Figure 5 The invention provides a range hood, a control block diagram of an embodiment thereof. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figures 1 to 5 The rechargeable range hood without connecting wires of the present invention is implemented as follows:

[0032] like Figure 1 As shown, the rechargeable wire-free range hood of this embodiment includes a range hood body 100, a fan assembly 200, a movable baffle 300, a movable driving mechanism, an operating assembly and a control assembly. A smoke passage 110 is arranged inside the range hood body 100, and the smoke passage 110 is provided with a smoking port 111 and a smoke outlet 112. The fan assembly 200 in this embodiment is arranged in the smoke passage 110, and in some other embodiments it can be arranged outside the smoke passage 110 and connected to the smoke outlet 112; at the same time, a panel 150 is arranged downwardly inclined from front to back on the front side of the range hood body 100, the smoking port 111 is arranged on the panel 150, the upper edge of the movable baffle 300 is hinged to the upper part of the outer side of the panel 150, and the upper edge of the movable baffle 300 is provided with a left-right extending arrangement The movable baffle 300 is arranged on the rotating axis, and the movable driving mechanism is used to drive the movable baffle 300 to rotate around the rotating axis. When the movable baffle 300 rotates forward to form a certain angle with the panel 150, the movable baffle 300 can guide and gather the oil smoke. The panel 150 in this embodiment is arranged to be tilted downward from front to back, mainly considering that in order to facilitate cooking and make room for the stove head, the movable driving mechanism in this embodiment is an electric control driving mechanism, specifically, the electric control driving mechanism is an electric push rod 400, one end of the electric push rod 400 is movably connected to the range hood body 100, and the other end of the electric push rod 400 is movably connected to the movable baffle 300, and the movable baffle 300 is driven to rotate by the telescopic action of the electric push rod 400. The electric control driving mechanism in this embodiment can realize automatic control with the operating component and the control component.

[0033] The operating component includes a wireless signal transmitter 310, an operator 320, a battery 330, and a first charging plug 340. The operator 320 is electrically connected to the battery 330, the wireless signal transmitter 310, and the first charging plug 340. The first charging plug 340 is fixed to the movable baffle 300. The battery 330 is used to power the operator 320. The operator 320 is configured to detect the power of the battery 330 and control the range hood. The control component includes a controller 120, a wireless signal receiver 130, a second charging plug 140, and a power source. The controller 120 is electrically connected to the power source, the wireless signal receiver 130, and the second charging plug 1 40 is electrically connected to the fan assembly 200, the second charging plug 140 is fixed on the range hood body 100, the first charging plug 340 and the second charging plug 140 are arranged on a circumference of the same radius with the rotation axis as the center line, the second charging plug 140 can be plugged into the first charging plug 340, the wireless signal receiver 130 is used to receive the signal transmitted by the wireless signal transmitter 310, and then transmit the signal to the controller 120, the controller 120 is configured to control the speed or start and stop of the fan assembly 200 after receiving the signal transmitted by the wireless signal receiver 130, and control the power supply to supply power to the second charging plug 140.

[0034] like Figure 1 As shown, when the driving end movable baffle 300 on the movable driving mechanism rotates to open the smoking port 111, the second charging plug 140 is separated from the first charging plug 340, and the battery 330 supplies power to the operator 320. When people operate the range hood through the operator 320, the operator 320 transmits the operation signal to the wireless signal transmitter 310, and the wireless signal transmitter 310 transmits the operation signal to the wireless signal receiver 130 in a wireless manner. Then, the wireless signal receiver 130 transmits the signal to the controller 120, and the controller 120 controls the speed or start and stop of the fan assembly 200, thereby realizing the wireless transmission of signals between the controller 120 and the operator 320; Figure 2As shown, when the movable baffle 300 at the driving end of the movable driving mechanism rotates to close the smoking port 111, the second charging plug 140 and the first charging plug 340 are in a plugged state. When the operator 320 detects that the battery 330 is low on power, the controller 120 can control the power supply to supply power to the second charging plug 140 through the above-mentioned signal transmission method, thereby charging the battery 330. Through the connection and separation of the second charging plug 140 and the first charging plug 340, the power supply of the battery 330, and the wireless transmission of signals between the wireless signal receiver 130 and the wireless signal transmitter 310, the connecting line between the movable baffle 300 and the smoke machine body 100 is omitted, so that the opening and closing angles and opening and closing forms of the movable baffle 300 can be diversified.

[0035] Meanwhile, the controller 120 is electrically connected to the electric push rod 400, and the controller 120 is configured to control the electric push rod 400 to drive the movable baffle 300 to rotate after receiving the signal transmitted by the wireless signal receiver 130. When the operator 320 detects that the battery 330 is low on power, it can transmit a signal to the controller 120, and then the controller 120 controls the electric push rod 400 to drive the movable baffle 300 to rotate to close the smoking port 111, so that the second charging plug 140 is plugged into the first charging plug 340, and controls the power supply to supply power to the second charging plug 140, charging the battery 330, and stopping the operation of the fan assembly 200; when the battery 330 is sufficiently charged, the controller 120 controls the electric push rod 400 to drive the movable baffle 300 to rotate to open the smoking port 111.

[0036] At the same time, for ease of use, a warning light is provided in the operator 320, and a buzzer is provided in the controller 120. The specific control principle of the range hood of this embodiment is as follows: when the battery 330 power is lower than a certain set value Q1, the warning light of the operator 320 flashes, and the buzzer of the controller 120 prompts; when the battery 330 power is lower than a certain set value Q2, the buzzer of the controller 120 prompts, the fan assembly 200 is turned off, the electric push rod 400 drives the movable baffle 300 to close the smoking port 111, and the second charging plug 140 and the first charging plug 340 charge the battery 330; when the battery 330 power is 0 and the movable baffle 300 is not closed, it is only necessary to re-supply power to the controller 120. After a period of prompting, the electric push rod 400 drives the movable baffle 300 to close the smoking port 111 and charge the battery 330. When the battery 330 power is charged to Q3, the operator 320 is reactivated and enters the standby state.

[0037] The battery 330 in this embodiment is a lithium battery.

[0038] The movable baffle 300 in this embodiment can also be regarded as an operation panel, and the operator 320 is fixed on the movable baffle 300 .

[0039] Furthermore, if Figure 3 and Figure 4 As shown, the first charging plug 340 includes a charging head base 341 and a charging head contact piece 342. The charging head base 341 is fixed to the back of the movable baffle 300, and the charging head contact piece 342 is arranged on the side wall of the charging head contact piece 342. The second charging plug 140 includes a charging seat base 141 and a charging seat contact piece 142. The charging seat base 141 is provided with a slot 143 that can be matched with the charging head base 341. The charging seat contact piece 142 is arranged in the slot 143, and the charging seat contact piece 142 can contact the charging head contact piece 342. When the movable baffle 300 is in a closed state, the charging head base 341 is inserted into the slot 143, and the charging seat contact piece 142 contacts the charging head contact piece 342, so as to realize the electrical connection between the first charging plug 340 and the second charging plug 140.

[0040] In order to prevent oil smoke from sticking to the charging seat contact piece 142, causing poor contact or leakage, the second charging plug 140 also includes a sliding block 144 and a reset elastic member. The sliding block 144 can be slidably installed in the slot 143. The charging seat contact piece 142 is arranged on the side wall of the slot 143. The reset elastic member is arranged between the sliding block 144 and the slot 143. The reset elastic member can push the sliding block 144 to cover the charging seat contact piece 142. When the second charging plug 140 is separated from the first charging plug 340, under the action of the reset elastic member, the reset elastic member can push the sliding block 144 to cover the charging seat contact piece 142. The reset elastic member in this embodiment is a reset spring 145. The return spring 145 is arranged between the bottom of the slot 143 and the bottom surface of the sliding block 144, one end of the return spring 145 abuts against the bottom surface of the sliding block 144, and the other end of the return spring 145 abuts against the bottom of the slot 143. Under the action of the return spring 145, the sliding block 144 can be kept in the notch of the slot 143 in a free state. Correspondingly, a limiting structure for limiting the sliding block 144 is provided at the notch of the slot 143, that is, to prevent the sliding block 144 from being pushed out from the notch of the slot 143. When the second charging plug 140 is plugged into the first charging plug 340, the charging head base 341 pushes the sliding block 144 into the slot 143 until the charging seat contact piece 142 contacts the charging head contact piece 342.

[0041] In addition, a first limiting countersunk hole 146 is provided at the bottom of the slot 143, and a second limiting countersunk hole 147 is provided at the bottom surface of the sliding block 144. The two ends of the reset spring 145 are respectively disposed in the first limiting countersunk hole 146 and the second limiting countersunk hole 147. The first limiting countersunk hole 146 and the second limiting countersunk hole 147 play a role in limiting and fixing the reset spring 145, so as to prevent the reset spring 145 from shifting and causing the sliding block 144 to get stuck.

[0042] Furthermore, the range hood of this embodiment also includes a lighting assembly 500, which is arranged on the movable baffle 300. The lighting assembly 500 is electrically connected to the operator 320. The lighting assembly 500 can provide a lighting function for the range hood. At the same time, when the lighting assembly 500 is installed on the movable baffle 300, the battery 330 supplies power to the lighting assembly 500.

[0043] In some other embodiments, the lighting assembly 500 may be installed on the range hood body 100 , and the power supply then supplies power to the lighting assembly 500 .

[0044] In some embodiments, the resetting elastic member may be a resetting component such as a spring sheet or a hydraulic cylinder.

[0045] In some other embodiments, the panel 150 may be in different postures, for example, in a vertical state.

[0046] In some other embodiments, the movable driving mechanism may be a manual driving mechanism, and the electric control driving mechanism may be other driving structures, for example, it may be a rotating motor directly, and the rotating motor drives the movable baffle 300 to rotate through a rotating shaft.

[0047] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A rechargeable range hood without connecting wires, characterized in that: It includes: A range hood body (100) is provided with a smoke passage (110), wherein the smoke passage (110) is provided with a smoke inlet (111) and a smoke outlet (112); A fan assembly (200) is arranged on the smoke exhaust fan body (100), and the fan assembly (200) is in communication with the smoke passage (110); A movable baffle (300) covering the smoking port (111); A movable driving mechanism, comprising a driving end which is in transmission connection with the movable baffle (300) and drives the movable baffle (300) to rotate so as to open and close the smoking port (111); An operating component, which is arranged on the movable baffle (300), the operating component comprising a wireless signal transmitter (310), an operating unit (320), a battery (330), and a first charging plug (340); the operating unit (320) is electrically connected to the battery (330), the wireless signal transmitter (310), and the first charging plug (340); the first charging plug (340) is fixed on the movable baffle (300); the battery (330) is used to supply power to the operating unit (320); the operating unit (320) is configured to detect the power level of the battery (330) and to control the range hood; A control component, which is arranged on a range hood body (100), the control component comprising a controller (120), a wireless signal receiver (130), a second charging plug (140), and a power source, the controller (120) being electrically connected to the power source, the wireless signal receiver (130), the second charging plug (140), and the fan assembly (200) at the same time, the second charging plug (140) being fixed on the range hood body (100), the second charging plug (140) being pluggable with the first charging plug (340), the wireless signal receiver (130) being used to receive a signal transmitted by the wireless signal transmitter (310) and then transmit the signal to the controller (120), the controller (120) being configured to control the rotation speed or start and stop of the fan assembly (200) and control the power source to supply power to the second charging plug (140) after receiving the signal transmitted by the wireless signal receiver (130); The front side of the range hood body (100) is provided with a panel (150) which is arranged to be inclined downward from the front to the back; the inhalation port (111) is arranged on the panel (150); the upper edge of the movable baffle (300) is hinged to the upper part of the outer side of the panel (150); the upper edge of the movable baffle (300) is provided with a rotation axis which is extended to the left and right; the driving end can drive the movable baffle (300) to rotate around the rotation axis; the first charging plug (340) and the second charging plug (140) are arranged on a circle with the same radius having the rotation axis as the center line; The movable drive mechanism is an electrically controlled drive mechanism, the controller (120) is electrically connected to the electrically controlled drive mechanism, and the controller (120) is configured to control the electrically controlled drive mechanism to drive the rotation of the movable baffle (300) after receiving a signal transmitted by the wireless signal receiver (130).

2. The rechargeable range hood without connection wires according to claim 1, characterized in that: The movable driving mechanism comprises an electric push rod (400), one end of the electric push rod (400) is movably connected to the range hood body (100), the other end of the electric push rod (400) is movably connected to the movable baffle (300), and the electric push rod (400) is electrically connected to the controller (120).

3. The rechargeable range hood without connection wires according to claim 1, characterized in that: It also comprises a lighting assembly (500), wherein the lighting assembly (500) is arranged on the movable baffle (300), and the lighting assembly (500) is electrically connected to the operator (320).

4. The rechargeable range hood without connection wires according to claim 1, characterized in that: The first charging plug (340) comprises a charging head base (341) and a charging head contact piece (342); the charging head base (341) is fixed to the back of the movable baffle (300); the charging head contact piece (342) is arranged on the side wall of the charging head contact piece (342); the second charging plug (140) comprises a charging seat base (141) and a charging seat contact piece (142); the charging seat base (141) is provided with a slot (143) that can be matched and plugged with the charging head base (341); the charging seat contact piece (142) is arranged in the slot (143); and the charging seat contact piece (142) can contact the charging head contact piece (342).

5. The rechargeable range hood without connection wires according to claim 4, characterized in that: The second charging plug (140) further comprises a sliding block (144) and a reset elastic member, wherein the sliding block (144) can be slidably installed in the slot (143), the charging seat contact piece (142) is arranged on the side wall of the slot (143), the reset elastic member is arranged between the sliding block (144) and the slot (143), and the reset elastic member can push the sliding block (144) to cover the charging seat contact piece (142).

6. The rechargeable range hood without connection wires according to claim 5, characterized in that: The return spring (145) is arranged between the bottom of the slot (143) and the bottom surface of the sliding block (144), one end of the return spring (145) abuts against the bottom surface of the sliding block (144), and the other end of the return spring (145) abuts against the bottom of the slot (143).

7. The rechargeable range hood without connection wires according to claim 6, characterized in that: A first limiting countersunk hole (146) is provided at the bottom of the slot (143), a second limiting countersunk hole (147) is provided on the bottom surface of the sliding stopper (144), and two ends of the return spring (145) are respectively provided in the first limiting countersunk hole (146) and the second limiting countersunk hole (147).

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