Fragrance equipment capable of switching air pump assembly

Abstract

The utility model provides fragrance equipment with switchable air pump components, which comprises a main body, a main control unit, a first air pump component, a second air pump component and at least one atomizing head are arranged in the main body, an output air passage of the first air pump component is respectively communicated with a switch valve of each atomizing head, and an output air passage of the second air pump component is communicated with a switch valve of each atomizing head. An output air passage of the second air pump assembly is also communicated with the switch valves of the atomizing heads respectively; the switch valves, the first air pump assembly and the second air pump assembly are electrically connected with the main control unit respectively; when the fragrance equipment is in a first state, the main control unit controls the first air pump assembly to start and convey air to the atomizing head, and the second air pump assembly is closed; and when the fragrance equipment is in the second state, the first air pump assembly does not transmit air, and the main control unit controls the second air pump assembly to start and transmit air to the atomization head. When the first air pump assembly cannot operate, the second air pump assembly can be started to replace the first air pump assembly, and the situation that the atomizing head is idle when the first air pump assembly does not convey air can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fragrance equipment, and in particular to a fragrance equipment with a switchable air pump component. Background Art

[0002] The fragrance equipment currently on the market usually uses the negative pressure principle to atomize perfume or essential oil and other fresheners in the atomizer, and discharges them from the mist outlet to diffuse the fragrance into the air, thereby improving the air quality.

[0003] In order to meet customers' needs for diversified fragrances, multiple atomizing heads are usually set up in the fragrance equipment at the same time. At present, the driving method of multiple atomizing heads in the fragrance equipment is generally to use more than two air pumps, each of which is responsible for driving a part of the atomizing heads. When customers only atomize a single fragrance for a long time, causing the corresponding driving air pump to run for a long time, it will easily cause the air pump to be damaged, and then the atomizing head driven by the air pump will be idle, causing waste. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a fragrance device with a switchable air pump assembly, so as to solve the problem that the current fragrance device only atomizes a single fragrance for a long time, causing the corresponding driving air pump to run for a long time, which easily leads to damage of the air pump, and then makes the atomizing working head driven by the air pump idle, causing waste.

[0005] In order to solve the above technical problems, the technical solution used in the utility model is:

[0006] The utility model discloses a fragrance device with a switchable air pump assembly, comprising a main body, wherein a main control unit, a first air pump assembly, a second air pump assembly and at least one atomizing head are arranged in the main body, wherein the output air passage of the first air pump assembly is respectively connected to the switch valve of each atomizing head, and the output air passage of the second air pump assembly is also respectively connected to the switch valve of each atomizing head, and the switch valve, the first air pump assembly and the second air pump assembly are respectively electrically connected to the main control unit;

[0007] When the fragrance device is in a first state, the main control unit controls the first air pump component to start and supply air to the atomizer head, and the second air pump component is turned off; when the fragrance device is in a second state, the first air pump component does not supply air, and the main control unit controls the second air pump component to start and supply air to the atomizer head.

[0008] Preferably, after the output air channel of the first air pump assembly and the output air channel of the second air pump assembly are respectively merged into the input end of the joint component, they are respectively connected to the switch valves of each atomizer head through the output end of the joint component, and the output air channel of the first air pump assembly is connected in series with a first one-way valve before merging into the joint component, and the output air channel of the second air pump assembly is connected in series with a second one-way valve before merging into the joint component.

[0009] Further preferably, the input end of the connector component includes a first input end and a second input end, the number of the output ends of the connector component is equal to the number of the atomizer heads, and the switch valve of each atomizer head is correspondingly connected to one of the output ends of the connector component.

[0010] Further preferably, a shell is provided in the main body, a first accommodating space and a second accommodating space are provided in the shell, the first air pump assembly and the second air pump assembly are both located in the second accommodating space, the top of the second accommodating space is a partition, the first accommodating space is located above the partition, the first accommodating space corresponds to the atomizing head one by one, and is used to accommodate an essential oil bottle matched with the atomizing head; the output air duct of the first air pump assembly and the output air duct of the second air pump assembly are both made of pipes;

[0011] At least two first fixing grooves are arranged at intervals on the circumferential side of the partition, and the shell is provided with vertical ribs on the outer side of the first accommodating space, and at least one second fixing groove is arranged at intervals above and below the ribs; the output air duct of the first air pump assembly and the output air duct of the second air pump assembly are successively sunk into the corresponding first fixing groove and the second fixing groove on the bypass route.

[0012] More preferably, the main control unit is preset with a reading unit, and the reading unit is used to read the essential oil information and output feedback information according to the read essential oil information.

[0013] Further preferably, the essential oil information includes the type and initial amount of the essential oil, and the main control unit is preset with a timing unit and atomization amounts corresponding to different operating modes of the fragrance device; the reading unit is also used to establish a communication connection with a user terminal, and send the feedback information to the user terminal through the established communication connection.

[0014] Further preferably, an electronic tag is provided on the body of the essential oil bottle, and the electronic tag is preset with the essential oil information corresponding to the essential oil in the essential oil bottle. The electronic tag is used to communicate with the reading unit. When the essential oil bottle is loaded into the first containing space, the electronic tag and the reading unit can achieve communication connection through RFID technology.

[0015] More preferably, the electronic tag is arranged at the bottom of the essential oil bottle, the main control unit includes a main control board and a circuit board electrically connected to the main control board, the circuit board is arranged below the first accommodating space, and the reading unit is arranged on the circuit board.

[0016] More preferably, the vertical distance between the electronic tag and the circuit board is no more than 1.5 cm.

[0017] Further preferably, a top sealing plate is arranged on the top of the first air pump assembly and the second air pump assembly in the second accommodating space, and the circuit board is located above the top sealing plate; the top sealing plate is provided with a U-shaped portion which is recessed in a direction away from the first accommodating space, and the U-shaped portion is located in the gap between the first air pump assembly and the second air pump assembly, and the socket of the circuit board is placed in the recessed space formed by the U-shaped portion.

[0018] Compared with the prior art, the beneficial effects of the fragrance device with a switchable air pump assembly described in the utility model are mainly reflected in:

[0019] The utility model provides a first air pump assembly and a second air pump assembly, and the output air passage of the first air pump assembly is respectively connected to the switch valve of each atomizing head, and the output air passage of the second air pump assembly is also respectively connected to the switch valve of each atomizing head, and the switch valve, the first air pump assembly, and the second air pump assembly are respectively electrically connected to the main control unit, so that when the fragrance device is in the first state, the main control unit can control the first air pump assembly to start and supply air to the atomizing head, and the second air pump assembly to shut down, and when the fragrance device is in the second state, the first air pump assembly does not supply air, and the main control unit can control The second air pump assembly starts and supplies air to the atomizer head, that is, when the first air pump assembly can operate normally, the second air pump assembly is a spare part, and when the first air pump assembly cannot operate, the second air pump assembly can be started and then replace the first air pump assembly, thereby avoiding the situation where the atomizer head is idle when the first air pump assembly does not supply air, which can improve the utilization rate of the atomizer head, so as to solve the problem that the current fragrance equipment only atomizes a single fragrance for a long time, causing the corresponding driving air pump to run for a long time, which is easy to cause damage to the air pump, and then the atomizer head driven by the air pump is idle, causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0021] Figure 1 An internal structure diagram of a fragrance device with a switchable air pump assembly provided by an embodiment of the utility model;

[0022] Figure 2 A cross-sectional structural diagram of a fragrance device with a switchable air pump assembly provided in an embodiment of the utility model;

[0023] Description of the drawings: main body 1, first air pump assembly 2, second air pump assembly 3, atomizing head 4, switch valve 5, joint component 6, first one-way valve 7, second one-way valve 8, output air duct 9, user terminal 10, essential oil bottle 11, electronic tag 12, first accommodating space 13, second accommodating space 14, main control board 15, circuit board 16, top sealing plate 17, U-shaped portion 18, shell 19, partition 20, first fixing groove 21, second fixing groove 22, rib 23. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model. In the present embodiments, it should be understood that the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0025] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in this utility model are for illustrative purposes only.

[0026] This embodiment provides a fragrance device with a switchable air pump assembly, such as Figure 1 As shown, it includes a main body 1, in which a main control unit, a first air pump assembly 2, a second air pump assembly 3 and at least one atomizing head 4 are arranged, the output air channel 9 of the first air pump assembly 2 is respectively communicated with the switch valve 5 of each atomizing head 4, the output air channel 9 of the second air pump assembly 3 is also respectively communicated with the switch valve 5 of each atomizing head 4, and the switch valve 5, the first air pump assembly 2, and the second air pump assembly 3 are respectively electrically connected to the above-mentioned main control unit;

[0027] When the fragrance device is in the first state, the main control unit controls the first air pump component 2 to start and supply air to the atomizer head 4, and the second air pump component 3 is turned off; when the fragrance device is in the second state, the first air pump component 2 does not supply air, and the main control unit controls the second air pump component 3 to start and supply air to the atomizer head 4.

[0028] It should be noted that the present embodiment is provided with four atomizer heads 4. In other embodiments, one, two, three or more atomizer heads 4 may be provided. The specific number may be adaptively designed according to product or user needs. Each atomizer head 4 has a corresponding switch valve 5 and is connected to the corresponding switch valve 5. The main control unit controls the opening and closing of the switch valve 5 corresponding to each atomizer head 4 to switch the air supply channel leading to the atomizer head 4 to start the atomization of the corresponding fragrance essential oil. Specifically, the switch valve 5 is preferably a solenoid valve.

[0029] The utility model provides a first air pump assembly 2 and a second air pump assembly 3, and connects the output air passage 9 of the first air pump assembly 2 to the switch valve 5 of each atomizing head 4, and connects the output air passage 9 of the second air pump assembly 3 to the switch valve 5 of each atomizing head 4, and connects the switch valve 5, the first air pump assembly 2, and the second air pump assembly 3 to the main control unit, respectively. When the fragrance device is in the first state, the main control unit can control the first air pump assembly 2 to start and supply air to the atomizing head 4, and the second air pump assembly 3 to shut down. When the fragrance device is in the second state, the first air pump assembly 2 does not supply air, and the main control unit can control The second air pump assembly 3 starts and supplies air to the atomizing head 4, that is, when the first air pump assembly 2 can operate normally, the second air pump assembly 3 is a spare part, and when the first air pump assembly 2 cannot operate, the second air pump assembly 3 can be started and then replace the first air pump assembly 2, thereby avoiding the situation where the atomizing head 4 is idle when the first air pump assembly 2 does not supply air, which can improve the utilization rate of the atomizing head 4, so it can solve the problem that the current fragrance equipment only atomizes a single fragrance for a long time, causing the corresponding driving air pump to run for a long time, which is easy to cause damage to the air pump, and then the atomizing head 4 driven by the air pump is idle, causing waste.

[0030] In a preferred embodiment, Figure 1As shown, after the output air channel 9 of the first air pump assembly 2 and the output air channel 9 of the second air pump assembly 3 are respectively merged into the input end of the joint component 6, they are respectively connected to the switch valves 5 of each atomizing head 4 through the output end of the joint component 66, and the output air channel 9 of the first air pump assembly 2 is connected in series with the first check valve 7 before being merged into the joint component 6, and the output air channel 9 of the second air pump assembly 3 is connected in series with the second check valve 8 before being merged into the joint component 6. In this embodiment, since the output air channel 9 of the first air pump assembly 2 and the output air channel 9 of the second air pump assembly 3 are correspondingly connected in series with the first check valve 7 and the second check valve 8, when any one of the air pump assemblies is opened, the gas output by the air pump assembly can only flow to the four switch valves 5 due to the action of the check valve of the other air pump assembly, thereby ensuring the required air pressure for atomization.

[0031] Further preferably, the input end of the joint component 6 includes a first input end and a second input end, the number of the output ends of the joint component 6 is equal to the number of the atomizing heads 4, and the switch valve 5 of each atomizing head 4 is correspondingly connected to the output end of one of the joint components 6. In this embodiment, the joint component 6 is a six-way joint, having two input ports and four output ports, the two input ports are correspondingly connected to the output airway 9 of the first air pump assembly 2 and the output airway 9 of the second air pump assembly 3, and the four output ports are correspondingly connected to the switch valve 5 of each atomizing head 4, which can simplify the layout of the gas transmission pipeline, save materials, and make full use of the limited space in the main body 1 for pipe layout.

[0032] Further preferably, a shell 19 is provided in the main body 1, and a first accommodating space 13 and a second accommodating space 14 are provided in the shell 19, the first air pump assembly 2 and the second air pump assembly 3 are both located in the second accommodating space 14, and a partition 20 is arranged transversely on the top of the second accommodating space 14, the first accommodating space 13 is located above the partition 20, the first accommodating space 13 corresponds to the atomizing head 4 one by one, and is used to accommodate the essential oil bottle 11 matched with the atomizing head 4, so that the first accommodating space 13 and the second accommodating space 14 are separated by the partition 20, which is conducive to noise control and convenient for installing and fixing other components, and the shell 19 can be used as a fixed base for other components; the output air duct 9 of the first air pump assembly 2 and the output air duct 9 of the second air pump assembly 3 are both made of pipes;

[0033] The circumferential side of the partition 20 is provided with at least two first fixing grooves 21 recessed inward from its outer side, and the shell 19 is provided with vertical ribs 23 on the outer side of the first accommodating space 13, and the ribs 23 are provided with at least one vertical second fixing groove 22 recessed inward from its outer side; the output airway 9 of the first air pump assembly 2 and the output airway 9 of the second air pump assembly 3 are successively sunken into the corresponding first fixing groove 21 and second fixing groove 22 on the bypass route, and the output airway 9 is fixed in this way to avoid the output airway 9 from being cross-wound and loosened to cause air leakage at the interface, and in this embodiment, the first fixing groove 21 and the second fixing groove 22 are both recessed inward from the edge of the component, and the output airway is convenient to insert and remove, and the installation of the output airway and the adjustment of its fixed position are easy. It is obvious that the number of the first fixing groove 21 and the second fixing groove 22 can be set accordingly according to the actual winding needs, and the setting form of the specific fixing groove can also be diversified, so as to be able to fix the output airway 9. The number set in this embodiment and the specific form of the fixing groove do not constitute a restriction on the implementation of the scheme.

[0034] In order to enable the fragrance device to have the function of intuitively outputting essential oil information including essential oil types and consumption status for users to obtain, in a further preferred embodiment, Figure 2 As shown, the main control unit is preset with a reading unit (not shown in the figure), which is used to read the essential oil information and output feedback information based on the read essential oil information. The fragrance device of the embodiment of the utility model has the function of outputting relevant essential oil information by pre-setting a reading unit that can read the essential oil information in the main control unit, and can output feedback information through the reading unit, which can be used to solve the problem that the existing fragrance device cannot intuitively output essential oil information including the type and consumption of essential oil for users to obtain, which not only facilitates the staff to find out the exhaustion of essential oil in time, but also enables them to quickly and accurately replace the essential oil bottle 11 of the corresponding fragrance.

[0035] More preferably, the reading unit is also used to establish a communication connection with the user terminal 10, and the feedback information is sent to the user terminal 10 through the established communication connection. The user terminal 10 can be a portable device such as a mobile phone, and the transmission of feedback information can be realized through Bluetooth connection technology. Of course, the fragrance device in other embodiments can also be used as the user terminal 10 by setting a display screen on the main body 1, and then the feedback information is intuitively displayed through the display screen. Specifically, the essential oil information includes the type and initial amount of the essential oil. The aforementioned main control unit is preset with a timing unit (not shown in the figure) and the atomization amount corresponding to different operating modes of the fragrance device, so that the reading unit can read the type and initial amount of the essential oil. The main control unit can calculate the consumption of the essential oil according to the atomization amount and the operating time, and then calculate the difference between the initial amount and the consumption of the essential oil, which is the remaining amount of the essential oil.

[0036] In another further preferred embodiment, an electronic tag 12 is provided on the body of the essential oil bottle 11. The electronic tag 12 is preset with essential oil information corresponding to the essential oil in the essential oil bottle 11, and the electronic tag 12 is used to communicate with the reading unit. Specifically, when the essential oil bottle 11 is loaded into the first accommodating space 13, the electronic tag 12 and the reading unit can be communicated through RFID technology. This method of establishing a communication connection between the electronic tag 12 and the reading unit is simple and convenient, and does not require additional training and guidance for the operator. The requirements for the operator are almost zero, and will not bring additional increase in usage costs to the user. It should be noted that RFID (radio frequency identification) technology is a prior art, and its working principle will not be described in detail here.

[0037] As an example, the electronic tag 12 is set at the bottom of the essential oil bottle 11, and the aforementioned main control unit includes a main control board 15 and a circuit board 16 electrically connected to the main control board 15. The circuit board 16 is set below the first storage space 13, and the circuit board 16 is provided with a reading unit. Specifically, the circuit board 16 is set below the partition. The circuit board 16 in this embodiment is a component of the main control unit. After the essential oil bottle 11 is loaded into the first storage space 13, through this orientation setting, it is easier to ensure that the electronic tag 12 is within the sensing area of ​​the reading unit. Specifically, the circuit board 16 is detachably connected to the bottom of the first storage space 13; preferably, in order to ensure the reliability of the communication connection between the electronic tag 12 and the reading unit, the vertical spacing between the electronic tag 12 and the circuit board 16 is not greater than 1.5 cm.

[0038] A top sealing plate 17 is provided on the top of the first air pump assembly 2 and the second air pump assembly 3 in the second accommodating space 14, and the circuit board 16 is located above the top sealing plate 17; the top sealing plate 17 is provided with a U-shaped portion 18 that is recessed in the direction away from the first accommodating space 13, and the U-shaped portion 18 is located in the gap between the first air pump assembly 2 and the second air pump assembly 3, and the power strip of the circuit board 16 is placed in the recessed space formed by the U-shaped portion 18, so that the height space occupied by the circuit board 16 can be minimized to avoid excessive increase in the height dimension of the fragrance device due to the arrangement of the circuit board 16. This embodiment provides an arrangement of the air pump assembly and the circuit board 16, which can ensure the noise reduction effect of the air pump noise, and at the same time can ensure that the communication connection requirements of the electronic tag 12 and the reading unit on the circuit board 16 are met, and the arrangement of the U-shaped portion 18 will not significantly increase the size of the fragrance device. It should be noted that, since the space occupied by the main control board 15 is smaller than that of the air pump assembly, in this embodiment, the main control board 15 is arranged below the second accommodating space 14, which can better meet the needs of the appearance design of the fragrance device.

[0039] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fragrance device with a switchable air pump assembly, characterized in that: The invention comprises a main body, wherein a main control unit, a first air pump assembly, a second air pump assembly and at least one atomizing head are arranged in the main body, wherein the output air passage of the first air pump assembly is respectively communicated with the switch valve of each atomizing head, and the output air passage of the second air pump assembly is also respectively communicated with the switch valve of each atomizing head, and the switch valve, the first air pump assembly and the second air pump assembly are respectively electrically connected to the main control unit; When the fragrance device is in a first state, the main control unit controls the first air pump component to start and supply air to the atomizer head, and the second air pump component is turned off; when the fragrance device is in a second state, the first air pump component does not supply air, and the main control unit controls the second air pump component to start and supply air to the atomizer head.

2. The fragrance device according to claim 1, characterized in that: The output air channel of the first air pump assembly and the output air channel of the second air pump assembly are respectively connected to the switch valves of the atomizing heads through the output ends of the joint components after they are respectively connected to the input ends of the joint components. The output air channel of the first air pump assembly is connected in series with a first one-way valve before it is connected to the joint component, and the output air channel of the second air pump assembly is connected in series with a second one-way valve before it is connected to the joint component.

3. The fragrance device according to claim 2, characterized in that: The input end of the connector component includes a first input end and a second input end. The number of the output ends of the connector component is equal to the number of the atomizing heads. The switch valve of each atomizing head is correspondingly connected to one of the output ends of the connector component.

4. The fragrance device according to any one of claims 1 to 3, characterized in that: The main body is provided with a shell, the shell is provided with a first accommodating space and a second accommodating space, the first air pump assembly and the second air pump assembly are both located in the second accommodating space, the top of the second accommodating space is a partition, the first accommodating space is located above the partition, the first accommodating space corresponds to the atomizer head one by one, and is used to accommodate the essential oil bottle matched with the atomizer head; The output air channel of the first air pump assembly and the output air channel of the second air pump assembly are both made of pipes; At least two first fixing grooves are arranged at intervals on the circumferential side of the partition, and the shell is provided with vertical ribs on the outer side of the first accommodating space, and at least one second fixing groove is arranged at intervals above and below the ribs; the output air duct of the first air pump assembly and the output air duct of the second air pump assembly are successively sunk into the corresponding first fixing groove and the second fixing groove on the bypass route.

5. The fragrance device according to claim 4, characterized in that: The main control unit is preset with a reading unit, and the reading unit is used to read the essential oil information and output feedback information according to the read essential oil information.

6. The fragrance device according to claim 5, characterized in that: The essential oil information includes the type and initial amount of the essential oil. The main control unit is preset with a timing unit and the atomization amount corresponding to different operating modes of the fragrance device; the reading unit is also used to establish a communication connection with the user terminal, and send the feedback information to the user terminal through the established communication connection.

7. The fragrance device according to claim 5, characterized in that: An electronic tag is provided on the body of the essential oil bottle. The electronic tag is preset with the essential oil information corresponding to the essential oil in the essential oil bottle. The electronic tag is used to communicate with the reading unit. When the essential oil bottle is loaded into the first containing space, the electronic tag and the reading unit can achieve communication connection through RFID technology.

8. The fragrance device according to claim 7, characterized in that: The electronic tag is arranged at the bottom of the essential oil bottle, the main control unit comprises a main control board and a circuit board electrically connected to the main control board, the circuit board is arranged below the first accommodating space, and the reading unit is arranged on the circuit board.

9. The fragrance device according to claim 8, characterized in that: The vertical distance between the electronic tag and the circuit board is no more than 1.5 cm.

10. The fragrance device according to claim 8, characterized in that: A top sealing plate is arranged on the top of the first air pump assembly and the second air pump assembly in the second accommodating space, and the circuit board is located above the top sealing plate; the top sealing plate is provided with a U-shaped portion which is recessed in the direction away from the first accommodating space, and the U-shaped portion is located in the gap between the first air pump assembly and the second air pump assembly, and the socket of the circuit board is placed in the recessed space formed by the U-shaped portion.

Images