Blower circuit board structure and blower

Abstract

The utility model discloses an air blower circuit board structure and an air blower, the air blower circuit board structure is arranged in an air passing channel of the air blower, and the air blower circuit board structure comprises a choked flow installation area and an overflowing air exhaust area; a plurality of non-wind-blocking electronic devices are arranged in the overflowing exhaust area; a plurality of wind blocking electronic devices are arranged in the flow blocking mounting area and are arranged in the wind passing direction; when the blower is in a working state, most of air flows in the air passing channel pass through the flow passing air exhaust area, and heat dissipation of devices in the flow choking installation area is taken away synchronously. The size of the blower can be reduced, the function of the blower is not affected, and meanwhile the circuit board of the blower is prevented from interfering with the air inlet amount of the air passing channel of the blower.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board layout, in particular to a hair dryer circuit board structure and a hair dryer. Background Art

[0002] In the scenario where users use hair dryers daily, the reason why hair dryers are designed to be larger is mainly because the hair dryers have a large requirement for air intake, so a larger air intake channel needs to be designed, and the hair dryer control circuit needs to be accommodated. However, users often need small hair dryers to be placed anywhere for portability. Currently, it is difficult to ensure that the normal operation of the hair dryer is not affected while reducing the volume, and at the same time meet the air intake requirements in the hair dryer air intake channel.

[0003] Therefore, a hair dryer circuit board structure is currently needed to reduce the size of the hair dryer without affecting the fan function, while preventing the hair dryer circuit board from interfering with the air intake of the hair dryer air passage. Utility Model Content

[0004] In order to solve the technical problem that the air intake of a small-volume hair dryer is difficult to meet the standard due to the size of the circuit board, the utility model provides a hair dryer circuit board structure and a hair dryer. The specific technical solution is as follows:

[0005] The utility model provides a hair dryer circuit board structure, which is arranged in an air passage of the hair dryer, and comprises:

[0006] Flow blocking installation area and flow exhaust area;

[0007] A number of non-wind-blocking electronic components are arranged in the flow exhaust area;

[0008] A plurality of wind-blocking electronic components are arranged in the flow-blocking installation area, and the plurality of wind-blocking electronic components are arranged along the wind direction;

[0009] When the hair dryer is in working state, most of the wind in the wind passage passes through the flow exhaust area, and simultaneously dissipates the heat of the components in the flow blocking installation area.

[0010] The hair dryer circuit board structure provided by the utility model divides the hair dryer circuit board into a flow-blocking installation area and a flow-through exhaust area, and relatively compactly arranges large-sized electronic components in the flow-blocking installation area, and relatively small-sized electronic components in the flow-through exhaust area, so that the hair dryer circuit board does not affect the exhaust effect of the airflow in the air passage when it passes through the flow-through exhaust area for exhaust. On the other hand, the hair dryer circuit board can be cooled by the exhaust process in the air passage, so that a small-volume hair dryer will not be affected by the wind blocking of the circuit board and the air intake of the air duct will not be affected.

[0011] In some embodiments, the flow blocking installation area is arranged along the central axis of the wind passage;

[0012] The over-flow exhaust area is divided into two symmetrical sub-over-flow exhaust areas by the flow-blocking installation area, and the two sub-over-flow exhaust areas are respectively arranged on both sides of the flow-blocking installation area.

[0013] The circuit board structure of the hair dryer provided by the utility model sets the flow-blocking installation area at the central axis position of the air passage, sets the flow-through exhaust areas on both sides to increase the heat dissipation effect of the electronic components in the flow-blocking installation area, and sets the relatively large-sized electronic components at the central axis position, so that the air intake volume in each direction of the air intake channel of the entire hair dryer is nearly the same during use, thereby keeping the center of gravity and the air intake force balance of the hair dryer during the air intake process.

[0014] In some embodiments, the flow-blocking installation area includes a first installation area and a second installation area;

[0015] The on-chip size of the electronic device arranged in the first mounting area is smaller than the on-chip size of the electronic device arranged in the second mounting area.

[0016] The hair dryer circuit board structure provided by the utility model respectively concentrates relatively large-sized electronic devices and relatively small-sized electronic devices in the first installation area and the second installation area in the flow-blocking installation area, thereby avoiding the mixed arrangement of high and low-sized devices inside the air inlet channel, which causes the air flow direction in the air inlet channel to be dispersed and hinders the air inlet speed. At the same time, the relatively small-sized electronic devices are concentratedly arranged to facilitate the air inlet design and air duct exhaust.

[0017] In some embodiments, the first installation area is disposed opposite to the air inlet of the air passage.

[0018] The hair dryer circuit board structure provided by the utility model can maximize the air intake volume of the air intake channel under the structural configuration, and at the same time is conducive to increasing the heat dissipation of multiple components in the first installation area.

[0019] In some embodiments, safety capacitors and surge protection devices are arranged in the first installation area;

[0020] The safety capacitor is connected to an external power source via a power connection line arranged in the first installation area.

[0021] The hair dryer circuit board structure provided by the utility model optimizes the layout of the safety capacitor so that the safety capacitor is arranged on the hair dryer circuit board close to the external power supply, so that the wiring length of the safety capacitor on the circuit board is shorter, thereby reducing the layout space of the hair dryer circuit board.

[0022] In some embodiments, a differential mode inductor and an electrolytic capacitor are disposed in the second mounting area;

[0023] The surge protection device, the safety capacitor, the differential mode inductor and the electrolytic capacitor are arranged in sequence along the wind direction.

[0024] The hair dryer circuit board structure provided by the utility model effectively arranges the position relationship of each electromagnetic component in the circuit board, so that the entire circuit board has a better EMC effect.

[0025] In some embodiments, the hair dryer circuit board structure provided by the utility model further includes:

[0026] The IGBT device is arranged in the flow exhaust area in an inclined direction toward the flow blocking installation area.

[0027] The hair dryer circuit board structure provided by the utility model solves the heat dissipation demand of the IGBT device by tilting the IGBT device in the overcurrent exhaust area. On the other hand, the tilted arrangement avoids the large IGBT device from affecting the space limitation of the IGBT device in the air passage.

[0028] In some embodiments, the IGBT device is disposed in the overcurrent exhaust area close to the first mounting area.

[0029] The hair dryer circuit board structure provided by the utility model places the IGBT device close to the first installation area so that the tilted IGBT has sufficient tilt margin, thereby preventing the excessive volume from affecting the volume setting of the circuit board in the air passage.

[0030] In some embodiments, the IGBT device is disposed on the air inlet side of the air passage.

[0031] The hair dryer circuit board structure provided by the utility model further increases the heat dissipation effect of the IGBT device by arranging the IGBT device on the air inlet side.

[0032] In some embodiments, the IGBT device is disposed in the overcurrent exhaust area close to the safety capacitor.

[0033] The hair dryer circuit board structure provided by the utility model reduces the influence of surrounding components on the heat dissipation effect of the IGBT component by arranging the IGBT component on the side of the safety capacitor with smaller heat dissipation.

[0034] In some embodiments, according to another aspect of the utility model, the utility model also provides a hair dryer, including a grip portion and the above-mentioned hair dryer circuit board structure, wherein an air passage is provided in the grip portion, and the hair dryer circuit board structure is provided in the air passage in the grip portion.

[0035] The utility model provides a hair dryer circuit board structure and a hair dryer, which have at least one of the following technical effects:

[0036] (1) By dividing the hair dryer circuit board into a flow-blocking installation area and a flow-through exhaust area, large-sized electronic devices are relatively compactly arranged in the flow-blocking installation area, and relatively small-sized electronic devices are arranged in the flow-through exhaust area, so that the hair dryer circuit board does not affect the exhaust effect of the airflow in the air passage when it passes through the flow-through exhaust area for exhaust. On the other hand, the hair dryer circuit board can be cooled through the exhaust process in the air passage, so that the small-volume hair dryer will not affect the air intake of the air passage due to the wind blocking of the circuit board;

[0037] (2) By arranging the flow-blocking installation area at the central axis of the air passage, and arranging the flow-through exhaust areas on both sides to increase the heat dissipation effect of the electronic components in the flow-blocking installation area, and arranging the relatively large-sized electronic components at the central axis, the air intake volume in each direction of the air intake channel of the entire hair dryer is nearly the same during use, so as to keep the center of gravity and the air intake force balance of the hair dryer during the air intake process;

[0038] (3) Relatively large-sized electronic devices and relatively small-sized electronic devices are respectively concentrated in the first installation area and the second installation area in the flow-blocking installation area to avoid the mixed arrangement of high and low-sized devices inside the air inlet channel, which causes the air flow direction in the air inlet channel to be dispersed and hinder the air inlet speed. At the same time, the relatively small-sized electronic devices are concentrated to facilitate the air inlet design and air duct exhaust;

[0039] (4) maximizing the air volume of the air inlet channel under the structural configuration, while facilitating increasing the heat dissipation of multiple components in the first installation area;

[0040] (5) By optimizing the layout of the safety capacitor, the safety capacitor is placed close to the external power supply on the hair dryer circuit board, so that the wiring length of the safety capacitor on the circuit board is shortened, thereby reducing the layout space of the hair dryer circuit board;

[0041] (6) By effectively laying out the positional relationship of each electromagnetic component in the circuit board, the entire circuit board has a better EMC effect;

[0042] (7) By tilting the IGBT device in the overcurrent exhaust area, on the one hand, the heat dissipation demand of the IGBT device is met, and on the other hand, the tilted arrangement avoids the large IGBT device from affecting the space limitation of the IGBT device in the overcurrent channel;

[0043] (8) By placing the IGBT device close to the first mounting area, the tilted IGBT has sufficient tilt margin to avoid the excessive volume affecting the volume setting of the circuit board in the air passage;

[0044] (9) The heat dissipation effect of the IGBT device is further increased by placing the IGBT device on the air inlet side;

[0045] (10) By placing the IGBT device on the side of the safety capacitor with smaller heat dissipation, the influence of surrounding devices on the heat dissipation effect of the IGBT device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 This is a structural example diagram of a hair dryer circuit board structure of the utility model;

[0048] Figure 2 This is another structural example diagram of a hair dryer circuit board structure of the utility model.

[0049] The numbers in the figure are: current blocking installation area-100, surge protection device-110, safety capacitor-120, differential mode inductor-130, electrolytic capacitor-140, overcurrent exhaust area-200 and IGBT device-210. DETAILED DESCRIPTION

[0050] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0051] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0052] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0053] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0054] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0055] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0056] An embodiment of the utility model, as Figure 1 and Figure 2 As shown, the utility model provides a hair dryer circuit board structure, which is arranged in the wind passage of the hair dryer, and includes a flow blocking installation area 100 and a flow exhaust area 200.

[0057] A number of non-wind-blocking electronic components are arranged in the flow-through exhaust area 200, and a number of wind-blocking electronic components are arranged in the flow-blocking installation area 100, and the wind-blocking electronic components are arranged along the wind direction; when the hair dryer is in working state, most of the wind flow in the wind passage passes along the flow-through exhaust area 200, and simultaneously takes away the heat from the components in the flow-blocking installation area 100.

[0058] The hair dryer circuit board structure provided by the utility model divides the hair dryer circuit board into a flow-blocking installation area 100 and a flow-through exhaust area 200, and relatively compactly arranges large-sized electronic components in the flow-blocking installation area 100, and relatively small-sized electronic components in the flow-through exhaust area 200, so that the hair dryer circuit board does not affect the exhaust effect of the airflow in the air passage when it passes through the flow-through exhaust area 200 for exhaust. On the other hand, the hair dryer circuit board can be cooled through the exhaust process in the air passage, so that the small-volume hair dryer will not be affected by the wind blocking of the circuit board and the air intake of the air duct will not be affected.

[0059] In one embodiment, the flow blocking installation area 100 is arranged along the central axis of the air passage; the flow exhaust area 200 is divided into two symmetrical sub-flow exhaust areas 200 by the flow blocking installation area 100, and the two sub-flow exhaust areas 200 are respectively arranged on both sides of the flow blocking installation area 100.

[0060] The circuit board structure of the hair dryer provided by the utility model sets the choke installation area 100 at the central axis position of the air passage, sets the flow exhaust area 200 on both sides to increase the heat dissipation effect of the electronic components in the choke installation area 100, and sets the relatively large-sized electronic components at the central axis position, so that the air intake volume in each direction of the air intake channel of the entire hair dryer is nearly the same during use, and the center of gravity and the air intake force balance of the hair dryer during the air intake process.

[0061] In one embodiment, the flow-blocking mounting area 100 includes a first mounting area and a second mounting area; the on-chip size of the electronic device arranged in the first mounting area is smaller than the on-chip size of the electronic device arranged in the second mounting area.

[0062] The hair dryer circuit board structure provided by the utility model concentrates relatively large-sized electronic devices and relatively small-sized electronic devices in the first installation area and the second installation area in the flow-blocking installation area 100, respectively, to avoid the mixed arrangement of high and low-sized devices inside the air inlet channel, which causes the air flow direction in the air inlet channel to be dispersed and hinders the air inlet speed. At the same time, the relatively small-sized electronic devices are concentratedly arranged to facilitate the air inlet design and air duct exhaust.

[0063] In one embodiment, the first installation area is arranged opposite to the air inlet of the air passage.

[0064] The hair dryer circuit board structure provided by the utility model can maximize the air intake volume of the air intake channel under the structural configuration, and at the same time is conducive to increasing the heat dissipation of multiple components in the first installation area.

[0065] In one embodiment, a safety capacitor 110 and an anti-surge device 120 are disposed in the first installation area; the safety capacitor 110 is connected to an external power source via a power connection line disposed in the first installation area.

[0066] The hair dryer circuit board structure provided by the utility model optimizes the layout of the safety capacitor so that the safety capacitor is arranged on the hair dryer circuit board close to the external power supply, so that the wiring length of the safety capacitor on the circuit board is shorter, thereby reducing the layout space of the hair dryer circuit board.

[0067] In one embodiment, a differential mode inductor 130 and an electrolytic capacitor 140 are disposed in the second installation area; the surge protection device 110, the safety capacitor 120, the differential mode inductor 130 and the electrolytic capacitor 140 are arranged in sequence along the wind direction.

[0068] The hair dryer circuit board structure provided by the utility model effectively arranges the position relationship of each electromagnetic component in the circuit board, so that the entire circuit board has a better EMC effect.

[0069] In one embodiment, the hair dryer circuit board structure provided by the utility model further includes:

[0070] The IGBT device 210 is disposed in the flow exhaust area 200 and is inclined toward the flow blocking installation area 100 .

[0071] The hair dryer circuit board structure provided by the utility model solves the heat dissipation demand of the IGBT device on the one hand by tilting the IGBT device in the overcurrent exhaust area 200, and on the other hand, the tilting arrangement avoids the large IGBT device from affecting the space limitation of the IGBT device in the air passage.

[0072] In one embodiment, the IGBT device 210 is disposed in the overcurrent exhaust area 200 close to the first mounting area.

[0073] The hair dryer circuit board structure provided by the utility model places the IGBT device 210 close to the first installation area, so that the tilted IGBT210 has sufficient tilt margin to avoid the excessive volume affecting the volume setting of the circuit board in the air passage.

[0074] In one embodiment, the IGBT device 210 is disposed on the air inlet side of the air passage.

[0075] The hair dryer circuit board structure provided by the utility model further increases the heat dissipation effect of the IGBT device by arranging the IGBT device on the air inlet side.

[0076] In one embodiment, the IGBT device 210 is disposed in the overcurrent exhaust area 200 close to the safety capacitor 120 .

[0077] The hair dryer circuit board structure provided by the utility model reduces the influence of surrounding components on the heat dissipation effect of the IGBT component by arranging the IGBT component on the side of the safety capacitor with smaller heat dissipation.

[0078] In one embodiment, according to another aspect of the utility model, the utility model also provides a hair dryer, including a grip portion and the above-mentioned hair dryer circuit board structure, an air passage is provided in the grip portion, and the hair dryer circuit board structure is provided in the air passage in the grip portion.

[0079] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] Those of ordinary skill in the art will appreciate that the units and steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed with hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0081] In the embodiments provided in the present application, it should be understood that the disclosed hair dryer circuit board structure and hair dryer can be implemented in other ways. For example, the hair dryer circuit board structure and hair dryer embodiment described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the communication connection between each other shown or discussed can be through some interfaces, communication connections of devices or units or integrated circuits, which can be electrical, mechanical or other forms.

[0082] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0083] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0084] It should be noted that the above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hair dryer circuit board structure, characterized in that: It is arranged in the air passage of the hair dryer, and includes: Flow blocking installation area and flow exhaust area; A number of non-wind-blocking electronic components are arranged in the flow exhaust area; A plurality of wind-blocking electronic components are arranged in the flow-blocking installation area, and the plurality of wind-blocking electronic components are arranged along the wind direction; When the hair dryer is in working state, most of the wind in the wind passage passes through the flow exhaust area, and simultaneously dissipates the heat of the components in the flow blocking installation area.

2. A hair dryer circuit board structure according to claim 1, characterized in that: The flow blocking installation area is arranged along the central axis of the air passage; The over-flow exhaust area is divided into two symmetrical sub-over-flow exhaust areas by the flow-blocking installation area, and the two sub-over-flow exhaust areas are respectively arranged on both sides of the flow-blocking installation area.

3. A hair dryer circuit board structure according to claim 2, characterized in that: The flow-blocking installation area includes a first installation area and a second installation area; The on-chip size of the electronic device arranged in the first mounting area is smaller than the on-chip size of the electronic device arranged in the second mounting area.

4. A hair dryer circuit board structure according to claim 3, characterized in that: The first installation area is arranged opposite to the air inlet of the air passage.

5. A hair dryer circuit board structure according to claim 3, characterized in that: Safety capacitors and surge protection devices are arranged in the first installation area; The safety capacitor is connected to an external power source via a power connection line arranged in the first installation area.

6. A hair dryer circuit board structure according to claim 5, characterized in that: A differential mode inductor and an electrolytic capacitor are arranged in the second installation area; The surge protection device, the safety capacitor, the differential mode inductor and the electrolytic capacitor are arranged in sequence along the wind direction.

7. A hair dryer circuit board structure according to claim 5, characterized in that: Also includes: The IGBT device is arranged in the flow exhaust area in an inclined direction toward the flow blocking installation area.

8. A hair dryer circuit board structure according to claim 7, characterized in that: The IGBT device is arranged in the overcurrent exhaust area close to the first installation area.

9. A hair dryer circuit board structure according to claim 8, characterized in that: The IGBT device is arranged at the air inlet side of the air passage.

10. A hair dryer circuit board structure according to claim 9, characterized in that: The IGBT device is arranged in the overcurrent exhaust area close to the safety capacitor.

11. A hair dryer, characterized in that: The invention comprises a holding portion and a hair dryer circuit board structure according to any one of claims 1 to 10, wherein an air passage is arranged in the holding portion, and the hair dryer circuit board structure is arranged in the air passage in the holding portion.

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