Convection heat exchange device, electric control component and air conditioner

Abstract

The invention discloses a convection heat exchange device, an electric control component and an air conditioner, the convection heat exchange device comprises a shell and a working unit, the shell comprises two shell walls arranged at intervals in the first direction, each shell wall is provided with a ventilation opening, and the working unit is arranged in the shell and comprises two deformation pieces arranged at intervals in the first direction; each deformation piece comprises a piece base body and a piezoelectric ceramic piece, the two thickness sides of each piece base body face the shell walls on the two sides respectively, the piezoelectric ceramic pieces are arranged on the piece base bodies and used for driving the piece base bodies to arch towards the thickness sides of the piece base bodies, and the convection heat exchange device is configured to be matched through deformation of the two deformation pieces in the working unit. The shell sucks air from the ventilation opening in one side and sprays air from the ventilation opening in the other side. According to the convection heat exchange device, the structure is simple, the cost is low, and the good heat dissipation and cooling effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a convection heat exchange device, an electric control component and an air conditioner. Background Art

[0002] The outdoor unit of the air conditioner is equipped with an electric control box, which contains components that generate high heat. If the temperature is not reduced in time, the working stability and reliability of the electric control box will be affected. For this reason, the related art uses a combination of refrigerant circulation heat dissipation and air cooling to cool the electric control box. Although this heat dissipation method has a good heat dissipation and cooling effect, it has a relatively complex structure, occupies a large space, and has a relatively high cost. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a convection heat exchange device, an electric control component and an air conditioner, wherein the convection heat exchange device has a simple structure, low cost and good heat dissipation and cooling effect.

[0004] A convective heat exchange device according to an embodiment of the first aspect of the present invention includes: a shell, the shell includes two shell walls spaced apart along a first direction, each of the shell walls has a vent; a working unit, the working unit is arranged in the shell and includes two deformable sheets spaced apart along the first direction, each of the deformable sheets includes a sheet substrate and a piezoelectric ceramic sheet, the thickness sides of the sheet substrate are respectively facing the shell walls on both sides, the piezoelectric ceramic sheet is arranged on the sheet substrate to drive the sheet substrate to arch toward the thickness side of the sheet substrate, and the convective heat exchange device is configured to make the shell inhale air from the vent on one side and eject air from the vent on the other side through the deformation cooperation of the two deformable sheets in the working unit.

[0005] The convection heat exchange device according to the embodiment of the present invention has a simple structure, low cost and good heat dissipation and cooling effect.

[0006] In some embodiments, the sheet substrate is in the shape of an elongated strip, the piezoelectric ceramic sheet is disposed at the center of the sheet substrate in the length direction, and both ends of the length of the sheet substrate are fixed respectively.

[0007] In some embodiments, the working unit includes two bases spaced apart along the length direction of the sheet substrate, and both ends of each sheet substrate in the working unit are fixedly mounted on the two bases.

[0008] In some embodiments, the piezoelectric ceramic sheet is disposed on a thickness side of the sheet substrate.

[0009] In some embodiments, the ventilation opening on at least one of the shell walls is arranged opposite to the working unit.

[0010] In some embodiments, on a projection plane perpendicular to the first direction, the ventilation openings on the two shell walls overlap.

[0011] In some embodiments, the sheet substrate is in the shape of an elongated strip, the vent on at least one of the shell walls is in the shape of an elongated strip and is consistent with the length direction of the sheet substrate, the width direction of the vent is consistent with the width direction of the sheet substrate, and the width of the vent is less than half the width of the sheet substrate, and the vent is arranged directly opposite to the center position of the width of the deformable sheet.

[0012] In some embodiments, a filter element is disposed on the shell, and the filter element covers the vent.

[0013] In some embodiments, the filter element is wrapped around the outside of the shell to cover the ventilation opening on at least one side of the shell wall.

[0014] In some embodiments, a plurality of the working units are provided in the housing.

[0015] In some embodiments, the length direction of the working unit is the second direction, the shell has a plurality of the working units arranged at intervals along a third direction, and the second direction and the third direction are perpendicular to the first direction in pairs.

[0016] In some embodiments, a plurality of the working units arranged along the third direction form a row of working groups, and a plurality of rows of the working groups arranged at intervals along the second direction are provided in the shell.

[0017] In some embodiments, the ventilation openings on at least one of the shell walls are arranged opposite to the working units.

[0018] In some embodiments, the piezoelectric ceramic sheets of the two deformable sheets in the working unit are respectively supplied with an alternating voltage and a pulsed unidirectional voltage so that the working unit alternately switches between a first state and a second state. In the first state, the two deformable sheets are arched toward each other; in the second state, one deformable sheet is arched toward away from the other deformable sheet, and the other deformable sheet resumes its deformation.

[0019] The electric control component according to the second embodiment of the present invention comprises an electric control box and a convection heat exchange device according to the first embodiment of the present invention, wherein the electric control box comprises a heat source device, and the convection heat exchange device is used to cool the heat source device.

[0020] According to the electric control component of the embodiment of the present invention, the convection heat exchange device of the first embodiment is provided, thereby improving the working stability and reliability of the electric control component.

[0021] In some embodiments, the ventilation opening on one side of the convective heat exchange device faces the heat source device.

[0022] In some embodiments, the shell of the convection heat exchange device is installed on the box body of the electric control box.

[0023] In some embodiments, the electronic control component further includes a radiator, and the vent on one side of the convection heat exchange device faces the cold end of the radiator.

[0024] In some embodiments, the radiator includes a bracket, a refrigerant tube installed on the bracket, and a cold plate cooperating with the refrigerant tube, at least one of the shell walls is an integral part with the bracket, and the vent on one side of the convection heat exchange device faces the cold plate.

[0025] An air conditioner according to an embodiment of a third aspect of the present invention comprises an electric control component according to an embodiment of the second aspect of the present invention.

[0026] According to the air conditioner of the present invention, the overall performance of the air conditioner is improved by providing the electronic control component of the second embodiment.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional diagram of a convection heat exchange device according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A front view of the convection heat exchange device shown in;

[0030] Figure 3 is along Figure 2 Sectional view along line AA;

[0031] Figure 4 is along Figure 2 Sectional view along the midline BB;

[0032] Figure 5 yes Figure 2 A perspective view of a working unit in a countercurrent heat exchange device shown in FIG.

[0033] Figure 6 is a cross-sectional view of a countercurrent heat exchange device according to an embodiment of the present invention;

[0034] Figure 7 yes Figure 6 A schematic diagram of a convection heat exchange device in a first state as shown in FIG.

[0035] Figure 8 yes Figure 6 A schematic diagram of the countercurrent heat exchange device shown in the second state;

[0036] Fig. 9 yes Figure 1 A rear view of the counter-flow heat exchange device shown in ;

[0037] Fig.10 is a cross-sectional view of a countercurrent heat exchange device according to an embodiment of the present invention;

[0038] Fig.11 yes Figure 1 Schematic diagram of the internal structure of the convection heat exchange device shown in;

[0039] Fig.12 is a perspective view of an electric control component according to an embodiment of the present invention;

[0040] Fig.13 is a perspective view of an electric control component according to another embodiment of the present invention;

[0041] Fig.14 yes Fig.13 A partial enlarged view of the C portion shown in ;

[0042] Fig.15 is a perspective view of a partial composition of an air conditioner according to an embodiment of the present invention.

[0043] Reference numerals:

[0044] Air conditioner 1000;

[0045] Electronic control component 100;

[0046] Convection heat exchange device 10; first direction F1; second direction F2; third direction F3;

[0047] Shell 1; Shell wall 11; Ventilation opening 111;

[0048] First shell wall 11a; first ventilation opening 111a;

[0049] Second shell wall 11b; second ventilation opening 111b;

[0050] Working unit 2; deformation piece 21; piece substrate 211; piezoelectric ceramic piece 212;

[0051] First deformable sheet 21a; first substrate 211a; first piezoelectric ceramic sheet 212a;

[0052] A second deformable sheet 21b; a second substrate 211b; a second piezoelectric ceramic sheet 212b;

[0053] Base 22;

[0054] Working group 3; Filter element 7;

[0055] Electric control box 20;

[0056] Heat source device 4; box body 5; radiator 6; bracket 61; refrigerant pipe 62; cold plate 63;

[0057] Heat exchanger 200; compressor 300; chassis 400. DETAILED DESCRIPTION

[0058] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0059] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0060] Hereinafter, a countercurrent heat exchange device 10 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0061] like Figure 1 As shown, the convection heat exchange device 10 includes: a shell 1 and a working unit 2. Figure 2-Figure 5The shell 1 includes two shell walls 11 spaced apart along a first direction F1, each shell wall 11 has a vent 111, the working unit 2 is arranged in the shell 1, and includes two deformable sheets 21 spaced apart along the first direction F1, each deformable sheet 21 includes a sheet substrate 211 and a piezoelectric ceramic sheet 212, the thickness sides of the sheet substrate 211 are respectively facing the shell walls 11 on both sides, the piezoelectric ceramic sheet 212 is arranged on the sheet substrate 211, so as to drive the sheet substrate 211 to arch toward the thickness side of the sheet substrate 211, and the convection heat exchange device 10 is configured to make the shell 1 inhale air from the vent 111 on one side and eject air from the vent 111 on the other side through the deformation cooperation of the two deformable sheets 21 in the working unit 2.

[0062] For example, in some embodiments, the piezoelectric ceramic sheets 212 of the two deformable sheets 21 in the working unit 2 are respectively supplied with an alternating voltage and a pulsed unidirectional voltage, so that the working unit 2 alternately switches between the first state and the second state. Figure 7 ), the two deformable sheets 21 arch toward each other; in the second state (reference Figure 8 ), one deformable sheet 21 arches in a direction away from the other deformable sheet 21, and the other deformable sheet 21 recovers its deformation.

[0063] It is worth noting that the voltage switching time point of the alternating voltage is consistent with the on-off switching time point of the pulse unidirectional voltage. For example, when the alternating voltage is applied to the piezoelectric ceramic piece 212 of one of the deformable pieces 21, the piezoelectric ceramic piece 212 of the other deformable piece 21 is in the voltage-on stage of the unidirectional pulse voltage, thereby obtaining the first state (refer to Figure 7 ); and when the alternating voltage is commutated, the unidirectional pulse voltage is switched to the power-off stage at the same time, thereby obtaining the second state (reference Figure 8 ).

[0064] Among them, "alternating cycle of the first state and the second state" means: first switching to the first state and then switching to the second state is a continuous action, and the continuous action is cycled multiple times, that is, the working unit 2 first switches to the first state, then switches to the second state, then switches to the first state, then switches to the second state, then switches to the first state, then switches to the second state, then switches to the first state, then switches to the second state, and so on.

[0065] For example, refer to Figure 6The two shell walls 11 of the shell 1 are respectively the first shell wall 11a and the second shell wall 11b, the vent 111 on the first shell wall 11a is the first vent 111a, the vent 111 on the second shell wall 11b is the second vent 111b, and the two deformable sheets 21 in the working unit 2 are respectively the first deformable sheet 21a and the second deformable sheet 21b. The first deformable piece 21a includes a first substrate 211a and a first piezoelectric ceramic piece 212a, and the thickness of the first substrate 211a is respectively oriented in the direction of the first shell wall 11a and the direction of the second shell wall 11b, and the first piezoelectric ceramic piece 212a is arranged on the first substrate 211a to drive the first substrate 211a to arch; the second deformable piece 21b is located between the first deformable piece 21a and the second shell wall 11b, and the second deformable piece 21b includes the second substrate 211b and the second piezoelectric ceramic piece 212b, and the thickness of the second substrate 211b is respectively oriented in the direction of the first deformable piece 21a and the direction of the second shell wall 11b, and the second piezoelectric ceramic piece 212b is arranged on the second substrate 211b to drive the second substrate 211b to arch.

[0066] For example, Figure 6 The first deformable sheet 21a and the second deformable sheet 21b may be in the initial state where no power is supplied. When the working unit 2 is working, an alternating voltage is supplied to the first deformable sheet 21a and a pulsed unidirectional voltage is supplied to the second deformable sheet 21b, so that the working unit 2 alternately switches between the first state and the second state. Figure 7 ), the first deformable piece 21a arches toward the second shell wall 11b, and the second deformable piece 21b arches toward the first shell wall 11a, so that the first deformable piece 21a and the second deformable piece 21b arch toward each other; in the second state (reference Figure 8 ), the voltage input to the first deformable piece 21a is reversed, and the second deformable piece 21b is powered off, so that the first deformable piece 21a is changed to be arched in the direction of the first shell wall 11a, and the second deformable piece 21b recovers its deformation and is not arched. In this way, the first state and the second state are alternately switched by the working unit 2, so that the shell 1 can inhale air from the first vent 111a and eject air from the second vent 111b.

[0067] To simplify the description of the working principle, Figure 6-Figure 8 , the side where the first shell wall 11a is located is defined as the upper side, the side where the second shell wall 11b is located is defined as the lower side, and the first deformable piece 21a is located above the second deformable piece 21b. Figure 6 ) or the second state (reference Figure 8 ), to the first state (reference Figure 7) during the switching process, the first deformable sheet 21a arches downward, the space above the first deformable sheet 21a increases, the pressure decreases, and the housing 1 inhales air through the first vent 111a; from the first state (reference Figure 7 ) to the second state (reference Figure 8 ) during the switching process, the first deformable sheet 21a arches upward, and the second deformable sheet 21b falls back downward, the space above the first deformable sheet 21a decreases, the pressure increases, and the space below the first deformable sheet 21a increases and the pressure decreases, and the air above the first deformable sheet 21a can be squeezed to the bottom of the first deformable sheet 21a; then from the second state (reference Figure 8 ) to the first state (reference Figure 7 ) During the switching process, the first deformable sheet 21a arches downward, and the second deformable sheet 21b arches upward, the space between the first deformable sheet 21a and the second deformable sheet 21b decreases, the pressure increases, and the space below the second deformable sheet 21b increases, the pressure decreases, the air between the first deformable sheet 21a and the second deformable sheet 21b can be pushed to the bottom of the second deformable sheet 21b and ejected through the second vent 111b, and at the same time, as mentioned above, due to the increase in space above the first deformable sheet 21a and the decrease in pressure, the air outside the housing 1 continues to be sucked in through the first vent 111a. According to this cycle, the convection heat exchange device 10 can achieve repeated suction and ejection, and the second vent 111b has a higher flow rate of air ejected, and the air is sprayed onto the heat source or near the heat source, which can more effectively achieve heat dissipation and cooling of the heat source through heat exchange.

[0068] In short, according to the convective heat exchange device 10 of the embodiment of the present invention, the deformation coordination of the two deformable plates 21 in the working unit 2 enables the shell 1 to inhale air from the vent 111 on one side and eject air from the vent 111 on the other side, thereby achieving good heat dissipation and cooling effects, a simple structure, and low manufacturing costs.

[0069] Compared with the technical solution of "fanning the heat source by swinging the deformable sheet" in the related art, the flow rate and flow velocity of the airflow ejected by the convective heat exchange device 10 of the embodiment of the present application are relatively large, showing the effect of high-frequency pulse jet, which can improve the heat dissipation and cooling effect on the heat source. In some embodiments, a slit jet can also be formed to drive more airflow to the heat source or near the heat source, thereby effectively improving the heat dissipation and cooling effect on the heat source.

[0070] It is worth noting that according to the convective heat exchange device 10 of the embodiment of the present invention, the piezoelectric ceramic pieces 212 of the two deformable pieces 21 in the working unit 2 are not limited to being respectively supplied with alternating voltage and pulsed unidirectional voltage. For example, the piezoelectric ceramic piece 212 of the first deformable piece 21a can still be supplied with alternating voltage, but the piezoelectric ceramic piece 212 of the second deformable piece 21b is not simply supplied with pulsed unidirectional voltage. For example, the power-off stage of the second deformable piece 21b can be replaced by first briefly supplying a voltage opposite to the unidirectional pulse voltage and then powering off. In this way, in the process of switching from the first state to the second state, the second deformable piece 21b can first arch downward to block the second vent 111b to avoid air intake from the second vent 111b, so that the air above the first deformable piece 21a can be more smoothly squeezed to the bottom of the first deformable piece 21a.

[0071] Of course, if the distance between the second deformable sheet 21b and the second vent 111b is relatively close, the second vent 111b can be basically blocked when the second deformable sheet 21b is powered off, and / or, when the second deformable sheet 21b is powered off and can be temporarily arched downward by the elastic force of rebound, the second vent 111b can also be blocked, thereby avoiding air inhalation from the second vent 111b, so that the air above the first deformable sheet 21a can be more smoothly squeezed to the bottom of the first deformable sheet 21a. In this case, there is no need to adopt the above-mentioned scheme of "replacing the power-off stage of the second deformable sheet 21b with first briefly passing a voltage opposite to the unidirectional pulse voltage and then powering off".

[0072] In some embodiments of the present invention, Figure 5 As shown, the sheet substrate 211 is in the shape of a long strip, and the piezoelectric ceramic sheet 212 is arranged at the central position in the length direction of the sheet substrate 211, and the two ends of the length of the sheet substrate 211 are fixed. As a result, the two ends of the length of the sheet substrate 211 are fixed and do not move, while the center can be arched and deformed under the action of the piezoelectric ceramic sheet 212, so that the piezoelectric ceramic sheet 212 can simply and effectively drive the sheet substrate 211 to produce a relatively large deformation, so that the suction and jet effects of the convective heat exchange device 10 are more obvious, which is conducive to improving the flow rate and flow of the jet, thereby improving the heat dissipation and cooling effect of the convective heat exchange device 10 on the heat source.

[0073] Of course, the present invention is not limited thereto. For example, in other embodiments of the present invention, the sheet substrate 211 may be processed into other shapes, or the piezoelectric ceramic sheet 212 may be disposed at other positions of the sheet substrate 211 except the length center.

[0074] It is worth noting that the material of the sheet substrate 211 is not limited, as long as it is easy to deform and can recover the deformation well, for example, it can be a flexible metal sheet, etc.

[0075] In some embodiments of the present invention, Figure 5 As shown, the working unit 2 includes two bases 22 spaced apart along the length direction of the sheet substrate 211, and both ends of each sheet substrate 211 in the working unit 2 are fixedly mounted on the two bases 22. That is, the ends on the same side (e.g., the left side) of the two sheet substrates 211 in the working unit 2 are fixed to the same base 22 (e.g., the base 22 on the left side), and the ends on the other side (e.g., the right side) of the two sheet substrates 211 are fixed to the other base 22 (e.g., the base 22 on the right side). In this way, the number of bases 22 used can be saved, the cost can be reduced, and the working unit 2 is made into an integral module, which is convenient for overall installation, thereby improving the assembly efficiency of the convective heat exchange device 10.

[0076] It is worth noting that the connection method between the sheet substrate 211 and the base 22 is not limited. For example, a fixing groove may be provided on the base 22, and the end of the sheet substrate 211 may be embedded in the fixing groove, or the sheet substrate 211 and the base 22 may be injection molded into an integral part, etc. Exemplarily, the base 22 may have two fixing grooves spaced apart along the first direction F1, and the two ends of each sheet substrate 211 are respectively fixedly installed in the corresponding fixing grooves on the two bases 22, so that the stability of the spacing between the two sheet substrates 211 can be improved.

[0077] In some embodiments of the present invention, Figure 5 As shown, the sheet substrate 211 is in the shape of a long strip. Figure 1-Figure 4 , the vent 111 on at least one shell wall 11 is long and consistent with the length direction of the sheet substrate 211 (for example, the second direction F2), the width direction of the vent 111 is consistent with the width direction of the sheet substrate 211 (for example, the third direction F3), and the width of the vent 111 is less than half of the width of the sheet substrate 211, for example, the width of the vent 111 is a, the width of the sheet substrate 211 is b, a<b / 2, and the vent 111 is arranged opposite to the center of the width of the deformable sheet 21. Therefore, when the long strip vent 111 is used as an air jet, since the vent 111 is in the form of a slit, when the airflow is ejected from the vent 111, the effect of the slit jet can be achieved, driving more surrounding air to flow to the heat source or near the heat source, further improving the heat dissipation and cooling effect on the heat source. It is understandable that in order to realize the slit jet, the size of the vent 111 can be set accordingly according to the specific situation of the working unit 2, which can be known by those skilled in the art through experiments or calculations, and therefore will not be elaborated.

[0078] Exemplarily, the vent 111 may include at least one strip opening extending along the length direction of the sheet substrate 211, the width of the strip opening is consistent with the width a of the vent 111, and the total length c of all the strip openings is less than the length d of the sheet substrate 211. For example, when the vent 111 includes only one strip opening, the length of the strip opening is c1, 0.8d<c1<d, and for another example, when the vent 111 includes two strip openings spaced apart along the length direction of the sheet substrate 211, the length of the strip opening is c2, 0.4d<c2<0.5d. Therefore, the length of the vent 111 is relatively large, which is conducive to increasing the amount of gas ejected and further improving the heat dissipation and cooling effect on the heat source.

[0079] Of course, the present invention is not limited thereto. For example, in other embodiments of the present invention, the vent 111 may also be configured as a hole or the like.

[0080] In some embodiments of the present invention, reference Figure 1-Figure 4 , at least one vent 111 on the shell wall 11 is arranged opposite to the working unit 2. It is worth noting that "arranged opposite" means: taking the plane perpendicular to the first direction F1 as the projection plane, the orthographic projection of the vent 111 on the projection plane falls within the contour range of the working unit 2 opposite to it. Therefore, the vent 111 opposite to the working unit 2 can be used as an air jet. In this way, when the working unit 2 is working, the air can be ejected through the vent 111 opposite to it, thereby improving the concentration of the air jet, increasing the flow rate and flow of the air jet, and then improving the heat dissipation and cooling effect on the heat source. Specifically, the airflow is ejected vertically from the vent 111, and the high-speed airflow directly hits the heat source to form convection for heat dissipation. The forced convection of this close-range vertical jet has a heat dissipation effect far exceeding the slow boundary layer created by the fan, and the heat dissipation and cooling effect is obvious.

[0081] In some embodiments of the present invention, Figure 2 and Fig. 9 As shown, the specifications and arrangements of the vents 111 on the two shell walls 11 are consistent. For example, on the projection plane perpendicular to the first direction F1, the vents 111 on the two shell walls 11 overlap, that is, all the vents 111 on one shell wall 11 overlap with all the vents 111 on the other shell wall 11, respectively, so that the non-directionality of the convective heat exchange device 10 can be achieved. By switching the power supply conditions of the two deformable sheets 21, the air injection and air suction of the vents 111 on the two shell walls 11 are interchanged, and the air injection effect is consistent, so that the non-directionality of the installation of the convective heat exchange device 10 is achieved, and the installation efficiency of the convective heat exchange device 10 is improved.

[0082] Of course, the present invention is not limited thereto, and the vents 111 on the two shell walls 11 may also be configured differently, that is, the shape and size of the vents 111 on each side may be separately configured.

[0083] In some embodiments of the present invention, Fig.10 As shown, a filter 7 is provided on the housing 1, and the filter 7 covers the vent 111 (for example, at least covers the vent 111 on the air intake side). Thus, the cleanliness of the air sucked into the housing 1 can be ensured, and dust particles and the like are prevented from being sucked in, which interferes with the operation of the deformation sheet 21, thereby improving the working reliability of the convective heat exchange device 10. Of course, the vent 111 on the air discharge side can also be covered to further improve the cleanliness of the housing 1 and the working reliability of the convective heat exchange device 10.

[0084] It is worth noting that the covering side of the filter element 7 is not limited, for example, the vent 111 can be covered from the outside of the housing 1, the vent 111 can be covered from the inside of the housing 1, or the filter element 7 can be embedded in the housing 1 to cover the vent 111. In addition, the filter element 7 can only be arranged partially corresponding to the vent 111 to reduce costs, and the filter element 7 can also exceed the area of ​​the vent 111 to facilitate the arrangement of the filter element 7.

[0085] For example, in some embodiments, Fig.10 As shown, the filter element 7 is wrapped outside the housing 1 to cover the vents 111 on at least one side of the housing wall 11 (for example, the vents 111 on the air intake side), or the filter element 7 can also completely wrap the housing 1 to cover the vents on both sides of the housing wall 11. Thus, by wrapping, the stability and reliability of the filter element 7 covering the vents 111 can be improved, the protective effect of the vents 111 can be improved, and the filter element 7 is convenient for fixing and installing with the housing 1.

[0086] In some embodiments of the present invention, Figure 5 As shown, the piezoelectric ceramic sheet 212 is arranged on the thickness side of the sheet substrate 211. Thus, the difficulty of assembling the piezoelectric ceramic sheet 212 and the sheet substrate 211 can be reduced, the number of piezoelectric ceramic sheets 212 used can be reduced, the cost can be reduced, and the input voltage regulation of the piezoelectric ceramic sheet 212 can be simplified.

[0087] Of course, the present invention is not limited to this. For example, in other embodiments of the present invention, piezoelectric ceramic sheets 212 can also be arranged on both sides of the thickness of the sheet substrate 211, and the directions of the input voltages of the piezoelectric ceramic sheets 212 on both sides of the thickness are opposite. In this way, when the piezoelectric ceramic sheet 212 on one side fails or is damaged, the piezoelectric ceramic sheet 212 on the other side can be used to drive the sheet substrate 211 to arch.

[0088] When the piezoelectric ceramic sheet 212 is disposed on one side of the thickness of the sheet substrate 211, illustratively, as Figure 6-Figure 8 As shown, in the two deformation sheets 21 of the working unit 2, the piezoelectric ceramic sheets 212 are both arranged on one side of the corresponding sheet substrate 211 close to the first shell wall 11a, and the piezoelectric ceramic sheets 212 are arranged on the ... Figure 6-Figure 8 The two deformable pieces 21 of the working unit 2 are respectively a first deformable piece 21a and a second deformable piece 21b. The first deformable piece 21a includes a first substrate 211a and a first piezoelectric ceramic piece 212a. The first piezoelectric ceramic piece 212a is located on a side of the first substrate 211a close to the first shell wall 11a. The second deformable piece 21b includes a second substrate 211b and a second piezoelectric ceramic piece 212b. The second piezoelectric ceramic piece 212b is located on a side of the second substrate 211b close to the first shell wall 11a.

[0089] First, voltages are applied to the first piezoelectric ceramic sheet 212a and the second piezoelectric ceramic sheet 212b, respectively, so that the first piezoelectric ceramic sheet 212a shortens and becomes thicker, forcing the first substrate 211a to arch toward the second shell wall 11b, and the second piezoelectric ceramic sheet 212b lengthens and becomes thinner, forcing the second substrate 211b to arch toward the first shell wall 11a, so that the working unit 2 presents a first state (refer to Figure 7 ). Then, the voltage applied to the first piezoelectric ceramic sheet 212a is reversed, the first piezoelectric ceramic sheet 212a is stretched and thinned, forcing the first substrate 211a to arch toward the first shell wall 11a, and at the same time, the second piezoelectric ceramic sheet 212b is powered off, and the second substrate 211b is restored to a flat shape without arching, so that the working unit 2 presents the second state (refer to Figure 8 ). Thus, by applying an alternating voltage to the first piezoelectric ceramic sheet 212a and a pulsed unidirectional voltage to the second piezoelectric ceramic sheet 212b, the two deformable sheets 21 in the working unit 2 will periodically and synchronously undergo the above-mentioned deformation combination.

[0090] Of course, the present invention is not limited to this. For example, in some other embodiments of the present invention, when the piezoelectric ceramic sheet 212 is arranged on the thickness side of the sheet substrate 211, one of the two deformable sheets 21 of the working unit 2 may be arranged on the side of the corresponding sheet substrate 211 close to the first shell wall 11a, and the other piezoelectric ceramic sheet 212 may be arranged on the side of the corresponding sheet substrate 211 close to the second shell wall 11b; or, in some other embodiments of the present invention, the two deformable sheets 21 of the working unit 2 may be arranged on the side of the corresponding sheet substrate 211 close to the second shell wall 11b. In short, no matter how it is set, the first state and the second state can be switched by controlling the voltage input, which will not be described in detail here.

[0091] In some embodiments of the present invention, reference Figure 1 and Fig.11 The shell 1 has a plurality of working units 2. Thus, the jetting capacity of the convective heat exchange device 10 can be improved, and the heat dissipation and cooling effect on the heat source can be improved. Figure 7 ) to the second state (reference Figure 8 ) During the switching process, the first deformable piece 21a arches upward and the second deformable piece 21b falls back downward, the space above the first deformable piece 21a decreases and the pressure increases, and the space below the first deformable piece 21a increases and the pressure decreases. Most of the air above the first deformable piece 21a can be squeezed to the bottom of the first deformable piece 21a, and a small part can flow to the bottom of the first deformable piece 21a next to it, so that the air inhaled by the first vent 111a flows in a coordinated manner by itself and will not escape from the first vent 111a. Therefore, the first vent 111a will only take in air and will not eject air, so that the second vent 111b can use high-frequency pulse jets to cool the heat source.

[0092] It is worth noting that the arrangement of the multiple working units 2 in the housing 1 is not limited. For example, in some embodiments, the length direction of the working unit 2 is the second direction F2, and the housing 1 has multiple working units 2 arranged at intervals along the third direction F3, and the second direction F2 and the third direction F3 are perpendicular to the first direction F1. It can be understood that when the deformable sheet 21 is a long strip, the length directions of the two deformable sheets 21 in the working unit 2 are consistent, and the length direction of the deformable sheet 21 constitutes the length direction of the working unit 2. When the length direction of the working unit 2 is the second direction F2, since the first direction F1 is the thickness direction of the deformable sheet 21, the third direction F3 is the width direction of the deformable sheet 21.

[0093] Therefore, by arranging multiple working units 2 at intervals along the width direction of the deformation plate 21, the space utilization rate inside the shell 1 can be improved, so as to increase the number of working units 2 arranged in the shell 1, further improve the jet capacity of the convective heat exchange device 10, and improve the heat dissipation and cooling effect of the heat source.

[0094] In some embodiments of the present invention, a plurality of working units 2 arranged along the third direction F3 form a row of working groups 3, and a plurality of rows of working groups 3 arranged at intervals along the second direction F2 are provided in the housing 1. Thus, the space in the housing 1 can be further fully utilized to increase the number of working units 2 provided in the housing 1, further improve the jetting capacity of the convective heat exchange device 10, and improve the heat dissipation and cooling effect on the heat source.

[0095] In some embodiments of the present invention, Figure 1As shown, when a plurality of working units 2 are provided in the shell 1, a vent 111 may be provided on the shell wall 11 for each working unit 2, that is, on a projection plane perpendicular to the first direction F1, each working unit 2 may at least partially overlap with at least one vent 111 on any one of the two shell walls 11, but the position correspondence between the vent 111 and the working unit 2 is not limited, for example, one vent 111 may correspond to a plurality of working units 2 at the same time, or one working unit 2 may correspond to a plurality of vents 111 at the same time, so that each working unit 2 may inhale and eject air more effectively, so as to make full use of each working unit 2 and improve the heat dissipation and cooling effect on the heat source.

[0096] For example, in some embodiments of the present invention, reference Figure 1-Figure 4 , at least one of the vents 111 on the shell wall 11 is arranged opposite to the working unit 2, that is, the number of the vents 111 and the working unit 2 is the same and the positions are opposite. It is worth noting that "opposite arrangement" means: taking the plane perpendicular to the first direction F1 as the projection plane, the positive projection of the vent 111 on the projection plane falls within the contour range of the working unit 2 opposite to it. Therefore, the vent 111 opposite to the working unit 2 can be used as an air jet. In this way, when each working unit 2 is working, it can be jetted through the vent 111 opposite to it, thereby improving the concentration of the jet, increasing the jet flow rate and flow rate, and then improving the heat dissipation and cooling effect on the heat source. Specifically, the airflow is ejected vertically from the vent 111, and the high-speed airflow directly hits the heat source to form a heat dissipation convection. This forced convection of close-range vertical jetting has a heat dissipation effect far exceeding the slow boundary layer created by the fan, and the heat dissipation and cooling effect is obvious.

[0097] For example, the deformable sheet 21 is in the shape of an elongated strip, and the vent 111 directly opposite to it is also in the shape of an elongated strip, so that when the airflow is ejected from the vent 111, the effect of a slit jet can be achieved, driving more surrounding air to flow toward the heat source or near the heat source, further improving the heat dissipation and cooling effect on the heat source. Exemplarily, on the projection plane perpendicular to the first direction F1, the vents 111 on the two shell walls 11 overlap, that is, all the vents 111 on one shell wall 11 overlap with all the vents 111 on the other shell wall 11, respectively, so that the non-directionality of the convective heat exchange device 10 can be achieved, and the jetting and suction of the vents 111 on the shell walls 11 on both sides can be interchanged by switching the power supply conditions of the two deformable sheets 21, and the jetting effect is consistent.

[0098] It is worth noting that, in addition to the vents 111 being provided on the two shell walls 11 spaced apart along the first direction F1, the shell 1 may also provide nozzles at other positions of the shell 1, etc. For example, the shell 1 has side walls spaced apart along the second direction F2 or the third direction F3, and nozzles may also be provided on the side walls. In addition, in some other embodiments of the present invention, the vents 111 serving as nozzles may not be provided directly opposite to the working unit 2, that is, with the plane perpendicular to the first direction F1 as the projection plane, the orthographic projection of the vents 111 on the projection plane falls outside the contour range of the working unit 2 directly opposite to it.

[0099] Next, the electric control component 100 according to the embodiment of the present invention will be described.

[0100] like Fig.12 As shown, the electric control component 100 includes: an electric control box 20 and a convection heat exchange device 10 according to any embodiment of the present invention, the electric control box 20 includes a heat source device 4, for example, the heat source device 4 may include but is not limited to a capacitive device, an inductive device, etc., and the convection heat exchange device 10 is used to cool the heat source device 4. Since the convection heat exchange device 10 according to the embodiment of the present invention has a good heat dissipation and cooling effect on the heat source, the heat source device 4 can achieve a good heat dissipation and cooling effect, which is beneficial to improve the working stability of the electric control box 20.

[0101] In some embodiments of the present invention, Fig.12 As shown, the vent 111 on one side of the convection heat exchange device 10 faces the heat source device 4. Therefore, the convection heat exchange device 10 can be set to eject air from the vent 111 on this side, so that the airflow can directly exchange heat with the heat source device 4, thereby improving the heat dissipation and cooling effect of the heat source device 4. Of course, the present invention is not limited to this. For example, in other embodiments of the present invention, the vent 111 on one side of the convection heat exchange device 10 can also face the surroundings of the heat source device 4, so that the temperature around the heat source device 4 is reduced, thereby achieving cooling of the heat source device 4.

[0102] Exemplarily, air is ejected from the vent 111, and the high-speed airflow directly hits the heat source device 4 to form convection for heat dissipation, and increases the static pressure inside the box body 5 of the electric control box 20, and pushes the hot air inside the box body 5 out from the heat dissipation opening on the side of the box body 5. This forced convection of close-range vertical jets has a heat dissipation effect that far exceeds the slow boundary layer created by the fan, and has a significant heat dissipation and cooling effect.

[0103] In some embodiments of the present invention, Fig.12 As shown, the electric control component 100 also includes a heat sink 6, combined with Fig.13, the vent 111 on one side of the convection heat exchange device 10 faces the cold end of the radiator 6. Therefore, the convection heat exchange device 10 can be set to inhale air from the vent 111 on this side, so that the temperature of the airflow inhaled by the convection heat exchange device 10 is relatively low, and the temperature of the gas ejected by the convection heat exchange device 10 is also relatively low, and the airflow can more fully exchange heat with the heat source device 4, thereby improving the heat dissipation and cooling effect of the heat source device 4. It is worth noting that the specific composition of the radiator 6 is not limited, for example, it can be an air-cooled radiator, a water-cooled radiator, a semiconductor radiator, etc.

[0104] In addition, the electrical control box 20 can also assist in cooling by other means. For example, holes can be opened in the box body 5 of the electrical control box 20 at the position corresponding to the motor and electronic control to facilitate natural wind cooling, thereby improving the heat dissipation and cooling effect of the electrical control box 20, thereby improving the working reliability and stability of the electrical control box 20.

[0105] It is worth noting that the location of the convective heat exchange device 10 is not limited. For example, in some embodiments of the present invention, Fig.12 As shown, the housing 1 of the convective heat exchange device 10 can be installed on the box body 5 of the electric control box 20. As a result, the processing difficulty of the box body 5 of the electric control box 20 can be reduced, the production and processing costs are reduced, and the application scope of the convective heat exchange device 10 is improved. For example, the connection between the housing 1 of the convective heat exchange device 10 and the box body 5 of the electric control box 20 can be achieved by screwing or clamping, which is not limited here.

[0106] For example, the capacitor and / or inductor with higher temperature during the test can be used as the heat source device 4, and the convection heat exchange device 10 can be installed as a separate accessory on the box body 5 of the electrical control box 20. By inputting an electrical signal, the convection heat exchange device 10 starts to work and ejects a jet of air toward the heat source device 4 or toward the surrounding of the heat source device 4 to dissipate heat and cool the heat source device 4.

[0107] For example, in some other embodiments of the present invention, the electric control component 100 further includes a radiator 6, and the radiator 6 may include a bracket 61, a refrigerant pipe 63 mounted on the bracket 61, and a cold plate 62 matched with the refrigerant pipe 63 (for example, the structure of the radiator 6 can refer to Fig.12 The refrigerant pipe 63 can be attached to the cold plate 62 or passed through the cold plate 62. Fig.13 and Fig.14At least one shell wall 11 and the bracket 61 are integrated, and the vent 111 on one side of the convection heat exchange device 10 faces the cold plate 62. Thus, the integration of the radiator 6 and the convection heat exchange device 10 is achieved, thereby improving the compactness of the structure, reducing the space occupied, and improving the stability and reliability of the vent 111 on one side of the convection heat exchange device 10 facing the cold end of the radiator 6, thereby improving the heat dissipation effect of the convection heat exchange device 10 on the heat source device 4.

[0108] Exemplarily, the capacitors and / or inductors with higher temperatures during the test can be used as heat source devices 4, and the shell 1 of the convective heat exchange device 10 can be integrated with the bracket 61 of the radiator 6, that is, a part of the bracket 61 can be used as a part of the shell 1 (so that the material of this part of the shell 1 is the same as the material of the bracket 61, for example, both are sheet metal parts), and a refrigerant pipe 63 is passed through the cold plate 62. The refrigerant pipe 63 conducts the cold air to the cold plate 62. The cold plate 62 reduces the air temperature near the bracket 61. When the convective heat exchange device 10 is working, the cold air is sucked in and blown to the heat source device 4, so that the heat source device 4 can be cooled quickly, which is conducive to meeting the temperature control standard of the heat source device 4.

[0109] Refer to the attached Fig.15 The present invention also proposes an air conditioner 1000.

[0110] like Figure 1 As shown, the air conditioner 1000 includes the electric control component 100 of any embodiment of the present invention. It is worth noting that the type of the air conditioner 1000 is not limited, and it can be an integrated air conditioner, such as a window air conditioner, or a mobile air conditioner, etc., and it can also be a split air conditioner, such as an air conditioner indoor unit, an air conditioner outdoor unit, etc. As described above, since the electric control component 100 is provided with the convection heat exchange device 10, the working stability and reliability can be improved, so that the working performance of the air conditioner 100 provided with the electric control component 100 can be improved.

[0111] For example, in the related art, the outdoor unit of the air conditioner adopts a combination of refrigerant circulation heat dissipation and air cooling heat dissipation. The cost of the cold plate used in the refrigerant circulation heat dissipation is relatively high, resulting in an increase in the overall heat dissipation cost. However, the convection heat exchange device 10 according to some embodiments of the present invention can be applied to the electric control component 100 of the outdoor unit of the air conditioner, and the heat source device 4 is cooled by air jet, which is conducive to reducing the cost of heat dissipation and cooling.

[0112] Other components of the air-conditioning outdoor unit according to the embodiment of the present invention, such as the heat exchanger 200, the compressor 300, the chassis 400, the fan, etc., and operations are known to ordinary technicians in the field and will not be described in detail here.

[0113] However, it is worth noting that the convection heat exchange device 10 according to the embodiment of the present invention is not limited to being applied to the electric control component 100 to dissipate heat and cool down the heat source device 4 in the electric control component 100, that is, it can also be used in other components with heat sources. In addition, the electric control component 100 according to the embodiment of the present invention is not limited to being applied to the air conditioner 1000 to dissipate heat and cool down the electric control box 20 in the air conditioner 1000, for example, it can also be used in other devices with heat sources.

[0114] Next, an air conditioner outdoor unit according to a specific embodiment of the present invention is described.

[0115] The air conditioner outdoor unit has an electric control box 20 and a convection heat exchange device 10, the electric control box 20 includes a heat source device 4, and the convection heat exchange device 10 is used to cool the heat source device 4. The convection heat exchange device 10 includes a housing 1 and a working unit 2, and the working units 2 are multiple and spaced apart and arranged in the housing 1. The structures of the working units 2 are the same, and each working unit 2 includes two deformation sheets 21 spaced apart along the first direction F1, and two bases 22 spaced apart along the second direction F2. Each deformation sheet 21 includes a sheet substrate 211 and a piezoelectric ceramic sheet 212. The sheet substrate 211 is in a long strip shape. The thickness direction of the sheet substrate 211 is a first direction F1, the length direction of the sheet substrate 211 is a second direction F2, and the width direction of the sheet substrate 211 is a third direction F3. The thickness sides of the sheet substrate 211 are respectively facing the shell walls 11 on both sides. The piezoelectric ceramic sheet 212 is arranged on the thickness side of the sheet substrate 211 and is located at the center of the length direction of the sheet substrate 211. The length ends of each sheet substrate 211 correspond to the bases 22 fixedly installed on both sides.

[0116] The housing 1 includes two housing walls 11 spaced apart along a first direction F1, each housing wall 11 having a vent 111; the number of vents 111 on each housing wall 11 is the same as that of the working units 2 and they are arranged opposite to each other. The vents 111 are long strips and are consistent with the length direction of the sheet substrate 211. The width direction of the vents 111 is consistent with the width direction of the sheet substrate 211, and the width of the vents 111 is less than half of the width of the sheet substrate 211. The vents 111 are arranged opposite to the center of the width of the deformable sheet 21. The housing 1 is wrapped with a filter 7 (such as filter paper, etc.) to cover all the vents 111 on at least one side of the housing wall 11.

[0117] Combined with Figure 6-Figure 8 In the direction shown, each working unit 2 has a vent 111 above for air intake. Fig.10 The upper surface of the housing 1 is covered with a filter 7 so that the upper vent 111 can inhale the air outside the housing 1 through the filter 7, and each working unit 2 has a vent 111 below for air jetting.

[0118] During operation, an alternating voltage is applied to the piezoelectric ceramic sheet 212 of the upper deformable sheet 21 in the working unit 2, and a pulsed unidirectional voltage is applied to the piezoelectric ceramic sheet 212 of the lower deformable sheet 21. Initially, the piezoelectric ceramic sheet 212 of the upper deformable sheet 21 will deform, shorten, and thicken, forcing the sheet substrate 211 bonded to the piezoelectric ceramic sheet 212 to bend downward. At the same time, the piezoelectric ceramic sheet 212 of the lower deformable sheet 21 will deform and elongate, becoming thinner, driving the sheet substrate 211 bonded to the piezoelectric ceramic sheet 212 to bend upward. After that, the voltage of the piezoelectric ceramic sheet 212 of the upper deformable sheet 21 is reversed, and the piezoelectric ceramic sheet 212 begins to deform in the opposite direction, continuously elongating and thinning, and drives the sheet substrate 211 bonded to the piezoelectric ceramic sheet 212 to arch upward. At the same time, the piezoelectric ceramic sheet 212 of the lower deformable sheet 21 is powered off, and the sheet substrate 211 bonded to the piezoelectric ceramic sheet 212 returns to its normal shape. Therefore, when an alternating voltage is applied to the piezoelectric ceramic sheet 212 of the upper deformable sheet 21 and a pulsed unidirectional voltage is applied to the piezoelectric ceramic sheet 212 of the lower deformable sheet 21, the upper deformable sheet 21 and the upper deformable sheet 21 will cyclically circulate synchronously.

[0119] When the sheet substrate 211 of the upper deformable sheet 21 bends downward, it pushes the air to increase the static pressure near the vent 111 below, forming an airflow ejected from the slit. At the same time, the space above the sheet substrate 211 continues to expand and the air pressure decreases, and air is sucked in and filled from the upper vent 111. After the sheet substrate 211 is bent downward and deformed into place, the voltage of the piezoelectric ceramic sheet 212 of the upper deformable sheet 21 is reversed, and the sheet substrate 211 arches upward again, causing a high-pressure area to appear in the space above the sheet substrate 211 and a low-pressure area to appear in the space below. The piezoelectric ceramic sheet 212 of the lower deformable sheet 21 is powered off, blocking the vent 111 below, and air cannot be sucked in from the vent 111 below. Therefore, the high-pressure area pushes the air just sucked in to the vicinity of the vent 111 below, thereby forming a working cycle of jetting and inhaling.

[0120] When the voltage of the piezoelectric ceramic sheet 212 of the upper deformation sheet 21 is reversed, the upper sheet substrate 211 arches upward, causing a high-pressure area to appear in the space above the sheet substrate 211 and a low-pressure area to appear in the space below. Most of the air in the high-pressure area will be transported to the vent 111 below, and a small part will move to the low-pressure area of ​​the adjacent working unit 2, so that the air sucked in by the upper vent 111 will flow in a coordinated manner and will not escape from the upper vent 111. Therefore, the upper vent 111 of each working unit 2 will only take in air, while the lower vent 111 will use high-frequency pulse jets to cool the heat source.

[0121] The lower vent 111 is located directly below the working unit 2, and the air is ejected vertically from the vent 111. The high-speed airflow directly hits the heat source to form convection for heat dissipation, and increases the static pressure inside the box body 5 of the electric control box 20, and pushes the hot air inside the box body 5 out from the opening on the side of the box body 5. This forced convection of close-range vertical jet has a heat dissipation effect that far exceeds the slow boundary layer created by the fan, and has a significant heat dissipation and cooling effect.

[0122] In short, based on the performance of the air-conditioning outdoor unit, in the full-capacity state, the working unit 2 can be used to realize waveform vibration under the action of electrical signals, and high and low pressure areas can be realized with the cooperation of the upper and lower vents 111 of the shell 1, and air jets can be realized at the vents 111. The design is based on the principle of mechanical convection, with low cost and obvious cooling effect.

[0123] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0124] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0125] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0126] In the present invention, 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.

[0127] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 invention. 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, without contradiction.

[0128] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A convection heat exchange device, characterized in that: include: A shell, the shell comprising two shell walls spaced apart along a first direction, each of the shell walls having a vent; A working unit is arranged in the shell and includes two deformable sheets arranged at intervals along a first direction, each of the deformable sheets includes a sheet substrate and a piezoelectric ceramic sheet, the thickness sides of the sheet substrate are respectively facing the shell walls on both sides, and the piezoelectric ceramic sheet is arranged on the sheet substrate to drive the sheet substrate to arch toward the thickness side of the sheet substrate, and the convection heat exchange device is configured to make the shell inhale air from the vent on one side and eject air from the vent on the other side through the deformation cooperation of the two deformable sheets in the working unit.

2. The convection heat exchange device according to claim 1, characterized in that: The sheet substrate is in the shape of a long strip, the piezoelectric ceramic sheet is arranged at the central position of the sheet substrate in the length direction, and the two ends of the length of the sheet substrate are respectively fixed.

3. The convection heat exchange device according to claim 2, characterized in that: The working unit comprises two bases spaced apart along the length direction of the sheet substrate, and both ends of each sheet substrate in the working unit are fixedly mounted on the two bases.

4. The convection heat exchange device according to claim 1, characterized in that: The piezoelectric ceramic sheet is arranged on one side of the thickness of the sheet substrate.

5. The convection heat exchange device according to claim 1, characterized in that: The ventilation opening on at least one of the shell walls is arranged opposite to the working unit.

6. The convection heat exchange device according to claim 1, characterized in that: On a projection plane perpendicular to the first direction, the ventilation openings on the two shell walls overlap.

7. The convection heat exchange device according to claim 1, characterized in that: The sheet substrate is in the shape of an elongated strip, the vent on at least one of the shell walls is in the shape of an elongated strip and is consistent with the length direction of the sheet substrate, the width direction of the vent is consistent with the width direction of the sheet substrate, and the width of the vent is less than half of the width of the sheet substrate, and the vent is arranged directly opposite to the center position of the width of the deformable sheet.

8. The convection heat exchange device according to claim 1, characterized in that: The shell is provided with a filter element, and the filter element covers the vent.

9. The convection heat exchange device according to claim 8, characterized in that: The filter element is wrapped outside the shell to cover the ventilation opening on at least one side of the shell wall.

10. The convection heat exchange device according to claim 1, characterized in that: A plurality of working units are arranged in the shell.

11. The convection heat exchange device according to claim 10, characterized in that: The length direction of the working unit is the second direction. The shell has a plurality of working units arranged at intervals along a third direction. The second direction and the third direction are perpendicular to the first direction in pairs.

12. The convection heat exchange device according to claim 11, characterized in that: A plurality of the working units arranged along the third direction form a row of working groups, and a plurality of rows of the working groups arranged at intervals along the second direction are arranged in the shell.

13. The convection heat exchange device according to claim 10, characterized in that: The ventilation openings on at least one of the shell walls are arranged opposite to the working units.

14. The convection heat exchange device according to any one of claims 1 to 13, characterized in that: The piezoelectric ceramic sheets of the two deformable sheets in the working unit are respectively supplied with an alternating voltage and a pulsed unidirectional voltage, so that the working unit alternately switches between a first state and a second state. In the first state, the two deformable sheets arch toward a direction close to each other. In the second state, one of the deformable sheets arches in a direction away from the other deformable sheet, and the other deformable sheet recovers its deformation.

15. An electric control component, characterized in that: include: An electric control box and a convection heat exchange device according to any one of claims 1 to 14, wherein the electric control box comprises a heat source device, and the convection heat exchange device is used to cool the heat source device.

16. The electric control component according to claim 15, characterized in that: The ventilation opening on one side of the convection heat exchange device faces the heat source component.

17. The electronic control component according to claim 15, characterized in that: The shell of the convection heat exchange device is installed on the box body of the electric control box.

18. The electronic control component according to claim 15, characterized in that: The electric control component further includes a radiator, and the vent on one side of the convection heat exchange device faces the cold end of the radiator.

19. The electronic control component according to claim 18, characterized in that: The radiator includes a bracket, a refrigerant pipe installed on the bracket, and a cold plate matched with the refrigerant pipe, at least one of the shell walls is an integral part with the bracket, and the vent on one side of the convection heat exchange device faces the cold plate.

20. An air conditioner, characterized in that: Comprising an electronic control component according to any one of claims 15-19.

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