Mounting structure for a suspended appliance, mounting control method and suspended appliance

Abstract

The present application relates to the mounting structure for the hanging electric appliance, the installation control method and the hanging electric appliance, wherein the mounting structure for the hanging electric appliance includes the screw rod, is used for fixing with the external installation foundation, the hook is used for being connected with the hanging electric appliance, the hanging hole is set up on the hook for the screw rod to pass through, the fastener is sleeved on the screw rod and is arranged above and / or below the hook, is used for locking the screw rod with the hook, characterized in being further including piezoelectric module, is made of piezoelectric material that can be deformed after electrification, is sleeved on the screw rod and is arranged between the fastener and the hook.The present application has the advantages that: prevent the ceiling type electric appliance from being installed loose and adjust the installation height, avoid the deviation of the installation position of the ceiling type electric appliance, in addition, according to the output voltage feedback of piezoelectric module, the weight change of the whole machine of the ceiling type electric appliance is monitored, thereby reminding the user to clean.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hanging electric appliances, and in particular to a mounting structure for a hanging electric appliance, a mounting control method and a hanging electric appliance. BACKGROUND

[0002] Hanging electric appliances such as hanging range hoods, central air conditioners, etc. are generally fixed and installed on the ceiling using expansion bolts, and four threaded rods are fixed and installed on the ceiling using nuts and washers. The four corners of the household appliance are fixed with hooks for installing the threaded rods, and the installation position of the hanging household appliance is determined by the position of the nut on each threaded rod. The installation position of the entire hanging household appliance can be adjusted by adjusting the position of the nut.

[0003] The aforementioned mounting structure has been disclosed in Chinese Utility Model Patent No. ZL 202221355365.2 (Authorized Announcement No. CN217635908U) “Central Air Conditioner Mounting Structure”. For example, patent No. ZL202221537478.4 (Authorized Announcement No. CN 218096117 U) “Hanging Structure of Range Hood and Range Hood Applying the Hanging Structure” discloses a hanging structure of a range hood. This structure can use a cam washer to cooperate with the hook to prevent circumferential rotation, thereby preventing the hook from loosening and separating from the threaded rod.

[0004] The installation method of the aforementioned hanging electric appliance is locked by the pre-tightening force generated by the nut and the washer. Due to the whole machine shaking caused by the operation of the hanging electric appliance, it is inevitable to affect the locking effect of the nut and the washer. Therefore, the installation method of the hanging electric appliance has the following disadvantages: as the use time increases, the pre-tightening force generated by the nut and the washer may become smaller and smaller, and even the nut may loosen; once the nut loosens, the whole machine shaking caused by the operation of the household appliance will cause continuous collision between the bracket and the threaded rod, and the noise generated will affect the user's experience. More serious consequences may cause the machine to separate, causing serious safety hazards. Moreover, long-term use may cause the installation position of the machine to deviate, thereby affecting the use effect of the household appliance.

[0005] Therefore, it is necessary to further improve the prior art. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide an installation structure for a hanging electric appliance that can prevent detachment.

[0007] The second technical problem to be solved by the present application is to provide a hanging electric appliance mounting control method applying the aforementioned installation structure, which can keep the installation of the hanging electric appliance stable.

[0008] The third technical problem to be solved by the present application is to provide a hanging appliance installation control method applied to the installation structure, which can generate a cleaning reminder for the hanging appliance.

[0009] The fourth technical problem to be solved by the present application is to provide a hanging appliance applied to the installation control method.

[0010] The technical solution adopted by the present application to solve the first technical problem is an installation structure for a hanging appliance, comprising

[0011] a screw rod for fixing with an external installation base;

[0012] a hook for connecting with the hanging appliance, wherein a hanging hole is formed in the hook for the screw rod to pass through;

[0013] a fastener sleeved on the screw rod and arranged above and / or below the hook, for locking the screw rod and the hook;

[0014] characterized in that it further comprises

[0015] a piezoelectric module made of piezoelectric material capable of deforming after being electrified, which is sleeved on the screw rod and arranged between the fastener and the hook.

[0016] To achieve the anti-disengagement effect, the fastener comprises a first fastener arranged above the hook and adjacent to the hook, and the piezoelectric module comprises a first piezoelectric module arranged between the upper surface of the hook and the first fastener, and the first piezoelectric module abuts against the upper surface of the hook.

[0017] To fix the screw rod with the external installation base, preferably, a third fastener is further sleeved on the screw rod, which is arranged above the first fastener and abuts against the first fastener and the external installation base.

[0018] To further prevent disengagement, the fastener further comprises a second fastener arranged below the hook and adjacent to the hook, and the piezoelectric module further comprises a second piezoelectric module arranged between the lower surface of the hook and the second fastener, and the second piezoelectric module abuts against the lower surface of the hook.

[0019] To facilitate anti-disengagement in the axial direction of the screw rod, preferably, the second fastener is a double nut.

[0020] Preferably, the first piezoelectric module and / or the second piezoelectric module is a piezoelectric laminated device formed by stacking sheet structures in sequence.

[0021] In order to facilitate the connection between the external mounting base and the hanging electrical appliance, the hook comprises a first mounting plate extending horizontally and a second mounting plate formed by bending the edge of the first mounting plate, the hook is connected with the hanging electrical appliance through the second mounting plate, and the hook hole is arranged on the first mounting plate.

[0022] Preferably, the external mounting base is a ceiling.

[0023] The present application solves the second and third technical problems by using the technical scheme of a mounting control method for a hanging electrical appliance, characterized in that the mounting of the hanging electrical appliance is realized by using the mounting structure as described above, the mounting structure is N groups, N is a positive integer greater than or equal to 2, wherein the first piezoelectric module in the jth group of mounting structures is defined as j1, the second piezoelectric module in the jth group of mounting structures is defined as j2, j∈{1, 2…N};

[0024] The mounting control method for the hanging electrical appliance comprises the following steps:

[0025] Step 1, in the state that n hanging electrical appliances are normally mounted and not working, n is a positive integer, the voltage values output by the first piezoelectric module and the second piezoelectric module of each group of mounting structures are collected, and the voltage average value of the first piezoelectric module of each group of mounting structures and the voltage average value of the second piezoelectric module of each group of mounting structures in all hanging electrical appliances are calculated;

[0026] Wherein the voltage average value of the first piezoelectric module of the jth group of mounting structures in all hanging electrical appliances is defined as The voltage average value of the second piezoelectric module of the jth group of mounting structures in all hanging electrical appliances is defined as

[0027] Step 2, in the state that the hanging electrical appliance to be tested is normally mounted and not working, the voltage values output by the first piezoelectric module and the second piezoelectric module of each group of mounting structures are collected respectively;

[0028] Wherein the voltage value output by the first piezoelectric module of the jth group of mounting structures in the hanging electrical appliance to be tested is defined as U' j1 , and the voltage value output by the second piezoelectric module of the jth group of mounting structures is defined as U' j2 ;

[0029] Step 3, in turn, j=1, 2…N, respectively are calculated, and 11 , ΔU 21 , … ΔU N1 , ΔU 12 , ΔU 22 , … ΔU N2If all are less than the first threshold value ε1, then no loosening occurs, and the process proceeds to step 4; if not, then select all △U j1 corresponding to the installation structure group number j, and the process proceeds to step 5. j2

[0030] Step 4, sum all △U 12 , △U 22 , …△U N2 to obtain △U, and determine whether △U is greater than the second threshold value ε2; if so, then remind the user to clean the hanging electric appliance, and the process proceeds to step 2; if not, then the process proceeds to step 2.

[0031] Step 5, input voltage to the first piezoelectric module and / or the second piezoelectric module in all selected installation structure group numbers j, and the process proceeds to step 2.

[0032] Specifically, the specific control steps for the first piezoelectric module and / or the second piezoelectric module in any selected installation structure group number j in step 5 are as follows:

[0033] Step 5-1, input a first preset voltage to the first piezoelectric module in the selected jth installation structure group, so that the first piezoelectric module is axially elongated.

[0034] Step 5-2, collect the voltage value U j1 output by the first piezoelectric module in the jth installation structure group, and calculate △U j1 , and determine whether △U j1 is less than the first threshold value ε1; if so, then the process proceeds to step 5-7; if not, then the process proceeds to step 5-3.

[0035] Step 5-3, increase the first preset voltage input to the first piezoelectric module, and determine whether the increased first preset voltage reaches a first maximum limit value; if so, then the process proceeds to step 5-4; if not, then the process proceeds to step 5-2.

[0036] Step 5-4, input a second preset voltage to the second piezoelectric module in the selected jth installation structure group, so that the second piezoelectric module is axially elongated.

[0037] Step 5-5, collect the voltage value U j2 output by the second piezoelectric module in the jth installation structure group, and calculate △U j2 , and determine whether △U j2 is less than the first threshold value ε1; if so, then the process proceeds to step 5-7; if not, then the process proceeds to step 5-6.

[0038] ​Step 5-6, increase the second preset voltage input to the second piezoelectric module, and determine whether the increased second preset voltage reaches a second maximum limit value, if yes, installation failure, end; if no, go to step 5-5;

[0039] Step 5-7, re-read the output voltage of each first piezoelectric module and second piezoelectric module on each set of installation structure, and update the voltage average value of the first piezoelectric module and the voltage average value of the second piezoelectric module.

[0040] The technical scheme adopted by the present application to solve the fourth technical problem is: a hanging type electric appliance characterized by applying the installation control method as described above.

[0041] Preferably, the hanging type electric appliance is a ceiling type range hood or a central air conditioner.

[0042] Compared with the prior art, the present application has the advantages that: by deforming the piezoelectric module after being powered on, the distance between the adjusting fastener and the hook is compensated to prevent the ceiling type electric appliance from loosening, and to avoid the vibration noise and more serious safety hazards caused thereby; secondly, by deforming the piezoelectric module, the installation height is adjusted to keep the installation state consistent with the initial state, and to avoid the shift of the installation position of the ceiling type electric appliance; in addition, according to the output voltage feedback of the piezoelectric module, the weight change of the whole ceiling type electric appliance is monitored to remind the user to clean. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 FIG. 1 is a schematic diagram of the installation structure of the ceiling type range hood in the embodiment of the present application;

[0044] Figure 2 FIG. 2 is an enlarged view of position A in FIG. 1; Figure 1

[0045] Figure 3 FIG. 3 is a partial cross-sectional view of FIG. 2; Figure 1

[0046] Figure 4 FIG. 4 is an enlarged view of position B in FIG. 1; Figure 3

[0047] Figure 5 FIG. 5 is an exploded view of the installation structure in the embodiment of the present application;

[0048] Figure 6 FIG. 6 is a flow chart of the installation control method of the hanging type electric appliance in the embodiment of the present application;

[0049] Figure 7 FIG. 7 is a specific control flow chart of the first piezoelectric module and the second piezoelectric module in FIG. 6; Figure 6 DETAILED DESCRIPTION ​​​​

[0050] The present application will be further described in detail below with reference to the accompanying drawings.

[0051] The following mounting structure and mounting control method can be applied to various suspended electrical appliances, such as ceiling-mounted range hoods, central air conditioners, etc. In order to fully understand the mounting structure and mounting control method, in the present embodiment, the mounting structure and mounting control method are designed in a range hood, and since range hoods have different structures, the ceiling-mounted range hood in Figures 1-5 will be taken as an example for description.

[0052] As shown in Figures 1-5 , the specific structure of the ceiling-mounted range hood in the present embodiment is prior art, which will not be described here, and the specific content can be referred to the content shown in the Chinese Utility Model "Ceiling-mounted range hood hanging structure and range hood applying the same" with the patent number ZL202221537478.4 (authorized announcement number CN 218096117 U).

[0053] The mounting structure in the present embodiment is used to mount the ceiling-mounted range hood on an external mounting base 2, wherein the external mounting base 2 is a ceiling. The mounting structure in the present embodiment includes a threaded rod 1, a hook 3, a fastener 4, and a piezoelectric module 5. The threaded rod 1 is used to be fixed with the external mounting base 2, and the upper end of the threaded rod 1 is further provided with an expansion bolt 11 which is arranged in a through hole 21 of the external mounting base 2, so that the threaded rod 1 is fixed on the external mounting base 2 through the expansion bolt 11; the hook 3 is used to be connected with the suspended electrical appliance, and the hook 3 is provided with a hanging hole 31 through which the threaded rod 1 passes; the fastener 4 is sleeved on the threaded rod 1 and arranged above and / or below the hook 3, and is used to lock the threaded rod 1 and the hook 3; the piezoelectric module 5 is made of piezoelectric material which can deform after being electrified, and the piezoelectric module 5 is sleeved on the threaded rod 1 and arranged between the fastener 4 and the hook 3, so as to compensate and adjust the distance between the fastener 4 and the hook 3.

[0054] As shown in Figure 5 , the hook 3 in the present embodiment includes a first mounting plate 32 which extends substantially horizontally, and a second mounting plate 33 which is formed by bending the edge of the first mounting plate 32, and the hook 3 is connected with the suspended electrical appliance through the second mounting plate 33, and the hanging hole 31 is arranged on the first mounting plate 32.

[0055] In the embodiment, the fastener 4 includes a first fastener 41 arranged above and adjacent to the hook 3 and a second fastener 42 arranged below and adjacent to the hook 3. The first fastener 41 is a single nut, and the second fastener 42 is a double nut. Correspondingly, the piezoelectric module 5 includes a first piezoelectric module 51 arranged between the upper surface of the hook 3 and the first fastener 41 and a second piezoelectric module 52 arranged between the lower surface of the hook 3 and the second fastener 42. The first piezoelectric module 51 abuts against the upper surface of the hook 3, and the second piezoelectric module 52 abuts against the lower surface of the hook 3. In addition, as shown in Figure 5 , the first piezoelectric module 51 and the second piezoelectric module 52 in the embodiment are piezoelectric laminated devices formed by stacking sheet structures in sequence.

[0056] The first fastener 41 exerts pressure on the first piezoelectric module 51, and the second fastener 42 exerts pressure on the second piezoelectric module 52. Due to the piezoelectric effect of the first piezoelectric module 51 and the second piezoelectric module 52 (the principle of the piezoelectric effect is that if pressure is applied to a piezoelectric material, it will generate a potential difference (referred to as positive piezoelectric effect), and vice versa, an electric voltage is applied to generate mechanical stress (referred to as inverse piezoelectric effect)), the first piezoelectric module 51 and the second piezoelectric module 52 generate a voltage, so the voltage value generated by the first piezoelectric module 51 and the second piezoelectric module 52 can be read by the controller.

[0057] The screw rod 1 is further sleeved with a third fastener 43 arranged above the first fastener 41 and abutting against the first fastener 41 and the external mounting base 2. The third fastener 43 is a nut, which can play a stabilizing role between the screw rod 1 and the external mounting base 2.

[0058] In order to realize stable installation of the ceiling type range hood, the mounting structure is N groups, N is a positive integer greater than or equal to 2, wherein the first piezoelectric module in the jth group of mounting structures is defined as j1, and the second piezoelectric module in the jth group of mounting structures is defined as j2, j ∈ {1, 2…N}; as shown in Figure 1 , the mounting structure in the embodiment is four groups and is arranged on the four walls of the ceiling type range hood.

[0059] As shown in Figure 6 , the installation control method for realizing the installation of the ceiling type range hood using the above mounting structure includes the following steps:

[0060] Step 1: In the normal installation and non-working state of n ceiling type range hoods, n is a positive integer, collect the voltage values output by the first piezoelectric module and the voltage values output by the second piezoelectric module of each group of mounting structures, and calculate the voltage average of the first piezoelectric module of each group of mounting structures and the voltage average of the second piezoelectric module of each group of mounting structures in all ceiling type range hoods;

[0061] The piezoelectric module itself has a piezoelectric effect, and pressure and its output voltage can be converted between each other. In addition, the piezoelectric modules of the same material and the same specification are used by default, that is, the parameters of the piezoelectric coefficients of the piezoelectric modules are consistent;

[0062] Wherein the average value of the voltage of the first piezoelectric module of the jth group of installation structures in all hanging electric appliances is defined as The average value of the voltage of the second piezoelectric module of the jth group of installation structures in all hanging electric appliances is defined as

[0063] Step 2, in the normal installation state of the hanging electric appliance to be tested and not working, the voltage value output by the first piezoelectric module and the voltage value output by the second piezoelectric module on each group of installation structures are collected respectively;

[0064] Wherein the voltage value output by the first piezoelectric module in the jth group of installation structures of the hanging electric appliance to be tested is defined as U' j1 , and the voltage value output by the second piezoelectric module in the jth group of installation structures is defined as U' j2 ;

[0065] Step 3, in turn, j = 1, 2…N, respectively, calculate And judge whether △U 11 , △U 21 , … △U N1 , △U 12 , △U 22 , … △U N2 is less than the first threshold value ε1, if yes, no loosening occurs, and turn to step 4; if not, select the installation structure group number j corresponding to all △U j1 , △U j2 greater than or equal to the first threshold value ε1, and turn to step 5;

[0066] Step 4, sum all △U 12 , △U 22 , … △U N2 , get △U, and judge whether △U is greater than the second threshold value ε2, if yes, remind the user to clean the hanging electric appliance, and turn to step 2; if not, turn to step 2;

[0067] The stress on the second piezoelectric module of each group of installation structures corresponds to the overall weight change of the ceiling type range hood. In this embodiment, the overall weight change of the ceiling type range hood usually corresponds to the weight change caused by absorbing oil stains, indicating that the oil stains have too much weight, so the ceiling type range hood needs to be cleaned;

[0068] Step 5, input the voltage of the first piezoelectric module and / or the second piezoelectric module in all selected installation structure group numbers j, and turn to step 2.

[0069] In addition, as shown in Figure 7 the specific control steps for the first piezoelectric module and / or the second piezoelectric module of any selected installation structure group j are as follows:

[0070] Step 5-1, input a first preset voltage to the first piezoelectric module in the selected jth installation structure group, so that the first piezoelectric module is axially elongated;

[0071] Step 5-2, collect the voltage value U j1 output by the first piezoelectric module in the jth installation structure group, and calculate ΔU j1 , and determine whether ΔU j1 is less than a first threshold value ε1. If yes, proceed to step 5-7; if no, proceed to step 5-3.

[0072] Step 5-3, increase the first preset voltage input to the first piezoelectric module, and determine whether the increased first preset voltage reaches a first maximum limit value. If yes, proceed to step 5-4; if no, proceed to step 5-2.

[0073] Step 5-4, input a second preset voltage to the second piezoelectric module in the selected jth installation structure group, so that the second piezoelectric module is axially elongated;

[0074] Step 5-5, collect the voltage value U j2 output by the second piezoelectric module in the jth installation structure group, and calculate ΔU j2 , and determine whether ΔU j2 is less than the first threshold value ε1. If yes, proceed to step 5-7; if no, proceed to step 5-6.

[0075] Step 5-6, increase the second preset voltage input to the second piezoelectric module, and determine whether the increased second preset voltage reaches a second maximum limit value. If yes, installation failure, end; if no, proceed to step 5-5.

[0076] Step 5-7, re-collect the output voltages of each first piezoelectric module and second piezoelectric module in each installation structure group, and update the voltage average value of the first piezoelectric module and the voltage average value of the second piezoelectric module.

[0077] When the first preset voltage reaches the first maximum limit value, it indicates that the first piezoelectric module has reached the deformation limit, so it cannot be elongated any more, and therefore the second piezoelectric module in the same installation structure group needs to be compensated and elongated. If the second preset voltage also reaches the second maximum limit value, it indicates that the first piezoelectric module has also reached the deformation limit, so it cannot be elongated any more, and therefore the pre-tightening force of the position cannot meet the normal range at this time, and therefore an alarm needs to be given to prompt installation failure.

[0078] In addition, the deformation of the first piezoelectric module or the second piezoelectric module in one of the installation structures will cause the center of gravity of the ceiling-mounted range hood to change, so the stress of the first piezoelectric module and the second piezoelectric module in the other installation structure will change, and the pre-stored value needs to be updated.

[0079] The first threshold value ε1, the second threshold value ε2, the first preset voltage, the second preset voltage, the first maximum limit value and the second maximum limit value are obtained according to experiments.

[0080] The installation control method in the embodiment can prevent the ceiling-mounted range hood from being loosened, avoid vibration noise and more serious safety hazards caused thereby, adjust the installation height by the deformation of the piezoelectric module, keep the installation state consistent with the initial state, avoid affecting the original oil path design of the ceiling-mounted range hood, monitor the weight change of the whole machine according to the output voltage feedback of the piezoelectric module, and remind the user to clean.

Claims

1. A mounting control method for a suspended appliance, a mounting structure for a suspended appliance comprising a screw rod (1) for fixing with an external mounting base (2); a hook (3) for connecting with the suspended appliance, the hook (3) being provided with a hanging hole (31) for the screw rod (1) to pass through; a fastener, sleeved on the screw rod (1) and arranged above and / or below the hook (3), for locking the screw rod (1) and the hook (3); characterized in that further comprising a piezoelectric module (5) made of piezoelectric material capable of deforming after being electrified, sleeved on the screw rod (1) and arranged between the fastener and the hook (3); the fastener comprises a first fastener (41) arranged above the hook (3) and adjacent to the hook (3), and the piezoelectric module (5) comprises a first piezoelectric module (51) arranged between the upper surface of the hook (3) and the first fastener (41), and the first piezoelectric module (51) abuts against the upper surface of the hook (3); the fastener further comprises a second fastener (42) arranged below the hook (3) and adjacent to the hook (3), and the piezoelectric module (5) further comprises a second piezoelectric module (52) arranged between the lower surface of the hook (3) and the second fastener (42), and the second piezoelectric module (52) abuts against the lower surface of the hook (3); the mounting control method for the suspended appliance uses the above mounting structure to realize the installation of the suspended appliance, the mounting structure is N groups, N is a positive integer greater than or equal to 2, wherein the first piezoelectric module in the jth group of mounting structures is defined as j1, and the second piezoelectric module in the jth group of mounting structures is defined as j2, j ∈ {1, 2…N}; the mounting control method for the suspended appliance comprises the following steps: Step 1, in the state that n suspended appliances are normally installed and not working, n is a positive integer, the voltage values output by the first piezoelectric module and the voltage values output by the second piezoelectric module of each group of mounting structures are collected, and the voltage average of the first piezoelectric module of each group of mounting structures and the voltage average of the second piezoelectric module of each group of mounting structures in all suspended appliances are calculated; wherein the average value of the voltage of the first piezoelectric module of the jth group of mounting structures in all the hanging electric appliances is defined as the average value of the voltage of the second piezoelectric module of the jth group of mounting structures in all the hanging electric appliances is defined as Step 2, in the state that the suspended appliance to be tested is normally installed and not working, the voltage values output by the first piezoelectric module and the voltage values output by the second piezoelectric module of each group of mounting structures are collected respectively; Wherein the voltage value output by the first piezoelectric module in the jth group of mounting structure of the hanging electrical appliance to be tested is defined as U j1 The voltage value output by the second piezoelectric module in the jth group of mounting structure is defined as U j2 ; Step 3, successively let j = 1, 2...N, respectively calculate and judge whether △U 11 , △U 21 ,... △U N1 , △U 12 , △U 22 ,... △U N2 are all less than the first threshold value ε1, if yes, then no loosening occurs, and go to step 4; if no, then select the installation structure group number j corresponding to all △U j1 or △U j2 greater than or equal to the first threshold value ε1, and go to step 5; Step 4, summing up all △U 12 , △U 22 , …△U N2 , and judging whether △U is greater than a second threshold value ε2. If yes, the user is reminded to clean the hanging electric appliance, and the process goes to Step 2. If no, the process goes to Step 2. Step 5, the voltage is input to the first piezoelectric module and / or the second piezoelectric module in all selected groups of mounting structures j, and the process goes to Step 2.

2. The installation control method for a suspended appliance according to claim 1, characterized in that: The screw rod (1) is further sleeved with a third fastener (43) arranged above the first fastener (41) and abutting against the first fastener (41) and the external mounting base (2).

3. The installation control method for a suspended appliance according to claim 1, characterized in that: The second fastener (42) is a double nut.

4. The installation control method for a suspended appliance according to claim 1, characterized in that: The first piezoelectric module (51) and / or the second piezoelectric module (52) are piezoelectric laminated devices formed by stacking sheet structures in sequence.

5. The installation control method for a suspended appliance according to any one of claims 1 to 4, characterized in that: The hook (3) comprises a first mounting plate (32) extending horizontally and a second mounting plate (33) formed by bending the edge of the first mounting plate (32), the hook (3) is connected with the suspended electric appliance through the second mounting plate (33), and the hanging hole (31) is arranged on the first mounting plate (32).

6. The installation control method for a suspended appliance according to claim 5, characterized in that: The external mounting base (2) is a ceiling.

7. The installation control method for a suspended appliance according to claim 1, characterized in that: The specific control steps of the first piezoelectric module and / or the second piezoelectric module of any selected installation structure group number j in step 5 are: Step 5-1, inputting a first preset voltage to the first piezoelectric module in the selected jth installation structure group to axially elongate the first piezoelectric module; Step 5-2, collect the voltage value U output by the first piezoelectric module in the jth group of installation structures j1 and calculate ΔU j1 whether ΔU j1 is less than the first threshold value ε1, if yes, turn to step 5-7; if no, turn to step 5-3; Step 5-3, increasing the first preset voltage input to the first piezoelectric module, and determining whether the increased first preset voltage reaches a first maximum limit value, if yes, turning to step 5-4; if no, turning to step 5-2; Step 5-4, inputting a second preset voltage to the second piezoelectric module in the selected jth installation structure group to axially elongate the second piezoelectric module; Step 5-5, collect the voltage value U outputted by the second piezoelectric module in the jth group of installation structure j2 , and calculate ΔU j2 , judge whether ΔU j2 is less than the first threshold value ε1, if yes, turn into step 5-7; if no, turn into step 5-6; Step 5-6, increasing the second preset voltage input to the second piezoelectric module, and determining whether the increased second preset voltage reaches a second maximum limit value, if yes, installing a fault, and ending; if no, turning to step 5-5; Step 5-7, re-collecting the output voltages of the first piezoelectric module and the second piezoelectric module in each installation structure group, and updating the voltage average value of the first piezoelectric module and the voltage average value of the second piezoelectric module.

8. A pendant appliance, characterized by: The installation control method has the advantages that the installation control method is applied to the installation of the suspended electric appliance.

9. The pendant appliance of claim 8, wherein: The suspended electric appliance is a ceiling-mounted range hood or a central air conditioner. The installation control method has the advantages that the installation control method is applied to the installation of the suspended electric appliance.

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