CN211641771U - Control box and fan subassembly - Google Patents
Control box and fan subassembly Download PDFInfo
- Publication number
- CN211641771U CN211641771U CN201922227345.1U CN201922227345U CN211641771U CN 211641771 U CN211641771 U CN 211641771U CN 201922227345 U CN201922227345 U CN 201922227345U CN 211641771 U CN211641771 U CN 211641771U
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- China
- Prior art keywords
- wall
- control box
- circuit board
- board assembly
- cover body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
Abstract
The utility model relates to a control box and fan subassembly. The control box comprises a cover body, a circuit board assembly and a base body; the cover body is used for being connected to the seat body; the control box also comprises an elastic piece, and two ends of the elastic piece are used for applying elastic forces with opposite directions to the cover body and the circuit board assembly respectively so as to press the circuit board assembly on the base body; wherein, one end of the elastic piece is connected to the cover body. Because the circuit board component is pressed on the base body through the elastic piece, the base body does not need to form screw holes, and the manufacturing cost of the base body is reduced. The utility model provides a fan subassembly, including the air-blower, still include above-mentioned control box, the control box is used for controlling the operating condition of air-blower, therefore the fan subassembly also has low in manufacturing cost's advantage.
Description
Technical Field
The utility model relates to an automobile air conditioner field, in particular to control box and fan subassembly.
Background
The vehicle air conditioner assembly includes a fan assembly including a blower and a control box. The control box is used for controlling the working state of the blower, such as the rotating speed.
In the prior art, the control box includes a cover, a circuit board assembly, a base and screws. The cover body is used for being connected with the base body to limit a closed space for accommodating the circuit board assembly. The circuit board assembly is fixed on the base body by screws and is positioned in the closed space.
The base body is used for fixing the circuit board assembly and also used for dissipating heat generated by the circuit board assembly. Therefore, the seat body is generally made of a metal material. In order to form a screw hole on the seat body for fitting with the screw, the seat body is generally manufactured by molding to form the screw hole. The screw holes limit the manufacturing mode of the seat body, so that the seat body is heavy in weight and high in cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a control box, control box has low in manufacturing cost's advantage.
An object of the utility model is to provide a fan subassembly still, fan subassembly includes above-mentioned control box.
The control box for realizing the purpose comprises a cover body, a circuit board assembly and a base body; the cover body is used for being connected to the seat body; the control box also comprises an elastic piece, and two ends of the elastic piece are used for applying elastic forces with opposite directions to the cover body and the circuit board assembly respectively so as to press the circuit board assembly on the base body; wherein, one end of the elastic piece is connected to the cover body.
In one embodiment, the circuit board assembly is disposed between the cover and the base, and the elastic member is disposed between the cover and the circuit board assembly.
In one embodiment, the cover and the base define a closed space; the elastic member and the circuit board assembly are disposed in the closed space.
In one embodiment, the seat body is a stamped part, and/or the elastic member is a bent metal sheet or a bent plastic sheet.
In one embodiment, the cover comprises a cover body and a buckle structure; the cover body is connected to the seat body, and the buckle structure is convexly arranged on the cover body;
the elastic piece is provided with a connecting part and a butting part; the connecting part is in clamping fit with the buckle structure, and the abutting part is used for pressing the circuit board assembly on the seat body.
In one embodiment, the connecting portion has a first wall body, a second wall body and a first connecting wall, wherein the first wall body and the second wall body are respectively connected with the first connecting wall, and the abutting portion is connected with the second wall body;
the first wall body is provided with a first through hole, and the second wall body is provided with a second through hole; the buckle structure penetrates through the first through hole and is clamped with the second through hole; the first wall body is abutted against the cover body.
In one embodiment, two ends of the second wall body are respectively connected with the abutting part and the connecting wall; the first wall body and the second wall body are positioned on the same side of the connecting wall;
wherein the first wall is parallel to the second wall.
In one embodiment, the abutting portion has a contact wall and a second connecting wall; one end of the second connecting wall is connected with the second wall body, and the other end of the second connecting wall is connected with the contact wall;
wherein the contact wall is parallel to the second wall body; the contact wall is used for pressing the circuit board assembly on the base body;
the second connecting wall includes a first connecting portion and a second connecting portion; one end of the first connecting part is connected with the second wall body, and the other end of the first connecting part is connected with one end of the second connecting part; the other end of the second connecting part is connected with the contact wall;
the first connecting part is parallel to the first connecting wall, the second connecting part and the first connecting part are arranged at a first included angle, and the second connecting part and the contact wall are arranged at a second included angle;
the second wall body and the second connecting portion are located on the same side of the first connecting portion, and the first connecting portion and the contact wall are located on the same side of the second connecting portion.
In one embodiment, the circuit board assembly includes a board body and an electrical component; the electric element is arranged on the board body in a protruding mode and located on one side of the board body; the elastic piece is abutted against the electric element, so that the other side of the plate body is pressed on the seat body.
In order to achieve the purpose, the fan assembly comprises a fan, and further comprises the control box, wherein the control box is used for controlling the working state of the fan.
The utility model discloses an actively advance the effect and lie in: the utility model provides a control box owing to compress tightly circuit board assembly on the pedestal through the elastic component, consequently, need not to form the screw hole on the pedestal, therefore has reduced the manufacturing cost of pedestal. The utility model provides a fan subassembly, including the air-blower, still include above-mentioned control box, the control box is used for controlling the operating condition of air-blower, therefore the fan subassembly also has low in manufacturing cost's advantage.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a side view of a fan assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fan assembly according to an embodiment of the present invention;
fig. 3 is a schematic view of a control box according to an embodiment of the present invention, wherein the view angle is from the bottom of the control box;
fig. 4 is a schematic view of a control box according to an embodiment of the present invention, wherein the view angle is from the side of the control box;
fig. 5 is an exploded view of the control box in an embodiment of the present invention;
fig. 6 is a schematic view of a cover body according to an embodiment of the present invention, showing an elastic member;
fig. 7 is a transverse cross-sectional view of a control box in an embodiment of the invention;
fig. 8 is a longitudinal sectional view of a control box according to an embodiment of the present invention;
fig. 9 is a schematic view of an elastic member according to an embodiment of the present invention.
Detailed Description
The following discloses embodiments or examples of various implementations of the subject technology. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present invention. For example, a first feature described later in the specification may be distributed over a second feature and may include embodiments in which the first and second features are distributed in direct association, or may include embodiments in which additional features may be formed between the first and second features, such that the first and second features may not be directly associated with each other. Additionally, reference numerals and/or letters may be repeated among the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It should be noted that fig. 1 to 9 are only examples, are not drawn to scale, and should not be taken as limiting the scope of the invention.
The automobile air conditioner assembly comprises a ventilation device, an evaporator, a warm air heat exchanger and the like. The ventilating device comprises a shell and a fan assembly, the evaporator and the warm air heat exchanger can be arranged in an air duct inside the shell, the fan assembly is used for enabling air flow to enter the air duct inside the shell and flow through the evaporator or the warm air heat exchanger, therefore the air flow is cooled or heated, then under the action of the fan assembly, the cooled or heated air flow is sent into a compartment, and therefore personnel in the compartment can obtain a comfortable environment.
Fig. 1 and 2 illustrate a fan assembly 900 according to an embodiment of the present invention. The blower assembly 900 includes a blower 91 and a control box 90, the control box 90 being used to control the operating state of the blower 91. The working state of the blower 91 includes the start and stop, the rotation speed, the turning direction and the like of the blower. The control box 90 may be attached to the blower 91 by screws or bolts.
In a comparative example, the control box includes a cover body, a circuit board assembly, a base body, and screws. The cover body is used for being connected with the base body to limit a closed space for accommodating the circuit board assembly. The circuit board assembly is fixed on the base body by screws and is positioned in the closed space. To form the screw hole in the seat body for mating with the screw, the seat body is typically molded to form the screw hole because the material forming the seat body requires a sufficient thickness to form a sufficiently long thread in the screw hole to accommodate the screw. The screw holes limit the manufacturing mode of the seat body, so that the seat body is heavy in weight and high in cost.
In order to reduce the manufacturing cost of the control box, in an embodiment of the present invention, as shown in fig. 3, 4, 5, and 6, the control box 90 includes a cover 1, a circuit board assembly 2, and a base 3; the cover body 1 is used for being connected to the seat body 3; the control box 90 further includes an elastic member 4, two ends of the elastic member 4 are used for applying elastic forces with opposite directions to the cover 1 and the circuit board assembly 2, respectively, so that the circuit board assembly 2 is pressed on the base 3; wherein, one end of the elastic piece 4 is connected to the cover body 1. The cover body 1 can be connected with the base body 3 through interference fit.
In the assembling process of the control box 90, one end of the elastic member 4 away from the cover body 1 contacts the circuit board assembly 2 along with the process of assembling the cover body 1 to the base body 3, and applies an elastic force to the circuit board assembly 2, so that the circuit board assembly 2 is pressed against the base body 3. In this way, the heat exchange between the circuit board assembly 2 and the housing body 3 is efficient, thereby improving the cooling efficiency of the circuit board assembly 2.
In the above embodiment, the circuit board assembly 2 is pressed onto the seat body 3 by the elastic member 4, so that there is no need to form screw holes on the seat body 3, thereby reducing the manufacturing cost of the seat body 3, and since there is no need to form screw holes, the seat body 3 can also be manufactured not by casting but by stamping, thereby further reducing the cost, i.e. the seat body 3 can be a stamping made of metal material.
Referring to fig. 5 and 6, in a specific embodiment, the circuit board assembly 2 is disposed between the cover 1 and the base 3, and the elastic member 4 is disposed between the cover 1 and the circuit board assembly 2. This arrangement helps to make the control box 90 compact.
In another embodiment, as shown in fig. 7 and 8, a closed space 90a is defined between the cover body 1 and the seat body 3; the elastic member 4 and the circuit board assembly 2 are disposed in the closed space 90 a. This solution contributes to an increased security of the circuit board assembly 2.
As shown in fig. 5, 6, 7, 8, 9, in a specific embodiment, the elastic member 4 may be a bent metal sheet or a bent plastic sheet. When the elastic member 4 is a bent metal sheet, the elastic member 4 has high toughness and is not easily broken. When the elastic member 4 is a bent plastic sheet, the insulating property of the elastic member 4 is good, and the risk of short circuit to the circuit board assembly 2 is not caused.
As shown in fig. 6, 7, 8 and 9, in a specific embodiment, the cover 1 includes a cover body 10 and a snap structure 11; the cover body 10 is used for connecting to the base body 3, and the buckle structure 11 is convexly arranged on the cover body 10; the elastic piece 4 is provided with a connecting part 40 and an abutting part 41; the connecting portion 40 is in snap fit with the snap structure 11, and the abutting portion 41 is used for pressing the circuit board assembly 2 on the base body 3. This arrangement makes it easy to connect the elastic member 4 to the cover 1.
With continued reference to fig. 9, in a more specific embodiment, the connection 40 has a first wall 401, a second wall 402, and a first connection wall 403, wherein the first wall 401 and the second wall 402 are respectively connected with the first connection wall 403, and the abutment portion 41 is connected with the second wall 402; the first wall 401 has a first through hole 401a, and the second wall 402 has a second through hole 402 a; the fastening structure 11 penetrates through the first through hole 401a and is fastened with the second through hole 402 a; the first wall 401 abuts against the lid body 10. This scheme can improve the stability of elastic component 4 connection on lid 1 for elastic component 4 is difficult for droing from lid 1, thereby has avoided the risk that elastic component 4 drove in the equipment process. In this embodiment, the first wall 401 abuts against the cover body 10 along a first direction, and the second wall 402 abuts against the fastening structure 11 along a second direction through the second through hole 402a, wherein the first direction and the second direction are opposite to each other.
The structure of the snap structure 11 can be various. In the embodiment shown in fig. 6, 7 and 8, the fastening structure 11 includes two hook rods disposed in parallel, one end of each hook rod is connected to the cover body 10, and the other end of each hook rod is hook-shaped to be fastened to the second through hole 402a, wherein the hook-shaped ends of the two hook rods are respectively fastened to two sides of the hole edge of the second through hole 402 a.
In an embodiment not shown, the snap structure 11 may also be a cylinder, and the end of the cylinder has a convex ring for snapping with the hole edge of the second through hole 402 a.
With continued reference to fig. 9, the two ends of the second wall 402 are connected to the abutting portion 41 and the connecting wall 403 respectively; the first wall 401 and the second wall 402 are located on the same side of the connecting wall 403; the first wall 401 is parallel to the second wall 402. This solution makes the elastic element 4 easy to manufacture.
With continued reference to fig. 9, in a more specific embodiment, the abutment portion 41 has a contact wall 411 and a second connecting wall 412; one end of the second connecting wall 412 is connected to the second wall 402, and the other end is connected to the contact wall 411; wherein the contact wall 411 is parallel to the second wall 402; the contact wall 411 is used for pressing the circuit board assembly 2 on the seat body 3; the second connection wall 412 includes a first connection portion 4121 and a second connection portion 4122; one end of the first connection portion 4121 is connected to the second wall 402, and the other end is connected to one end of the second connection portion 4122; the other end of the second connection portion 4122 is connected to the contact wall 411; the first connecting portion 4121 is parallel to the first connecting wall 403, the second connecting portion 4122 and the first connecting portion 4121 form a first included angle α, and the second connecting portion 4122 and the contact wall 411 form a second included angle β; the second wall 402 and the second connection portion 4122 are located on the same side of the first connection portion 4121, and the first connection portion 4121 and the contact wall 411 are located on the same side of the second connection portion 4122. This arrangement can improve the stability of the elastic member 4 against the circuit board assembly 2. Furthermore, the arrangement of the first included angle α and the second included angle β can provide at least a portion of the elasticity of the elastic member 4.
In a more specific embodiment, the first included angle α and the second included angle β may each range between 120 ° and 150 °. Preferably, the sum of the first angle α and the second angle β is 270 °.
Referring to fig. 5, 7, 8, in one embodiment, the circuit board assembly 2 includes a board body 20 and an electrical component 21; the electric element 21 is arranged on the board body 20 in a protruding manner and is positioned on one side of the board body 20; the elastic element 4 abuts against the electric element 21, so that the other side of the plate body 20 is pressed against the seat body 3.
The number of the elastic members 4 may be plural, and in the embodiment shown in fig. 5, the number of the elastic members 4 is 3. The plurality of elastic members 4 may be distributed at different positions on the cover body 10 as needed.
As shown in fig. 3, 4 and 7, the housing 3 has a protrusion 3a protruding toward the outside, and the protrusion 3a is used to increase the heat dissipation area of the housing 3 to improve the heat dissipation efficiency of the control box 90.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments by the technical spirit of the present invention fall within the scope of protection defined by the claims of the present invention.
Claims (10)
1. A control box comprises a cover body (1), a circuit board assembly (2) and a base body (3); the cover body (1) is used for being connected to the seat body (3);
the control box (90) is characterized by further comprising an elastic piece (4), wherein two ends of the elastic piece (4) are used for applying elastic forces in opposite directions to the cover body (1) and the circuit board assembly (2) respectively so as to enable the circuit board assembly (2) to be pressed on the base body (3);
wherein one end of the elastic piece (4) is connected to the cover body (1).
2. The control box according to claim 1, wherein the circuit board assembly (2) is disposed between the cover body (1) and the base body (3), and the elastic member (4) is disposed between the cover body (1) and the circuit board assembly (2).
3. The control box according to claim 2, characterized in that said cover (1) and said seat (3) define a closed space (90 a); the elastic member (4) and the circuit board assembly (2) are disposed in the closed space (90 a).
4. Control box according to claim 1, characterized in that the seat (3) is a stamped part and/or the elastic element (4) is a bent sheet metal or a bent plastic piece.
5. The control box according to claim 1, characterized in that the cover (1) comprises a cover body (10) and a snap structure (11); the cover body (10) is used for being connected to the base body (3), and the buckle structure (11) is convexly arranged on the cover body (10);
the elastic piece (4) is provided with a connecting part (40) and a butting part (41); the connecting portion (40) is in clamping fit with the clamping structure (11), and the abutting portion (41) is used for pressing the circuit board assembly (2) onto the base body (3).
6. The control box according to claim 5, characterized in that said connection portion (40) has a first wall (401), a second wall (402) and a first connection wall (403), wherein said first wall (401) and said second wall (402) are respectively connected with said first connection wall (403), said abutment portion (41) is connected with said second wall (402);
the first wall (401) has a first through hole (401a), and the second wall (402) has a second through hole (402 a); the buckle structure (11) penetrates through the first through hole (401a) and is clamped with the second through hole (402 a); the first wall (401) abuts against the cover body (10).
7. The control box according to claim 6, characterized in that the two ends of said second wall body (402) are connected to said abutting portion (41) and to said connecting wall (403), respectively; the first wall (401) and the second wall (402) are located on the same side of the connecting wall (403);
wherein the first wall (401) is parallel to the second wall (402).
8. The control box according to claim 6, characterized in that said abutment portion (41) has a contact wall (411) and a second connection wall (412); one end of the second connecting wall (412) is connected with the second wall body (402), and the other end is connected with the contact wall (411);
wherein the contact wall (411) is parallel to the second wall (402); the contact wall (411) is used for pressing the circuit board assembly (2) on the base body (3);
the second connection wall (412) includes a first connection portion (4121) and a second connection portion (4122); one end of the first connecting part (4121) is connected to the second wall body (402), and the other end is connected to one end of the second connecting part (4122); the other end of the second connecting portion (4122) is connected to the contact wall (411);
wherein the first connecting portion (4121) is parallel to the first connecting wall (403), the second connecting portion (4122) is disposed at a first included angle (α) with the first connecting portion (4121), and the second connecting portion (4122) is disposed at a second included angle (β) with the contact wall (411);
wherein the second wall body (402) and the second connecting portion (4122) are located on the same side of the first connecting portion (4121), and the first connecting portion (4121) and the contact wall (411) are located on the same side of the second connecting portion (4122).
9. The control box according to claim 2, characterized in that said circuit board assembly (2) comprises a board body (20) and an electrical element (21); the electric element (21) is arranged on the plate body (20) in a protruding mode and is positioned on one side of the plate body (20); the elastic piece (4) is abutted against the electric element (21) so that the other side of the plate body (20) is pressed on the seat body (3).
10. A fan assembly comprising a blower (91), characterized in that the fan assembly (900) further comprises a control box (90) according to any one of claims 1 to 9, the control box (90) being adapted to control the operating state of the blower (91).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227345.1U CN211641771U (en) | 2019-12-12 | 2019-12-12 | Control box and fan subassembly |
| PCT/CN2020/135176 WO2021115369A1 (en) | 2019-12-12 | 2020-12-10 | Control box and fan assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227345.1U CN211641771U (en) | 2019-12-12 | 2019-12-12 | Control box and fan subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211641771U true CN211641771U (en) | 2020-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922227345.1U Active CN211641771U (en) | 2019-12-12 | 2019-12-12 | Control box and fan subassembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211641771U (en) |
| WO (1) | WO2021115369A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115369A1 (en) * | 2019-12-12 | 2021-06-17 | 法雷奥汽车空调湖北有限公司 | Control box and fan assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005043880B4 (en) * | 2005-09-14 | 2014-10-02 | Continental Automotive Gmbh | Mounting system for printed circuit boards |
| DE102010039012B4 (en) * | 2010-08-06 | 2021-09-23 | Ledvance Gmbh | 2LED lamp |
| DE102011005890A1 (en) * | 2011-03-22 | 2012-09-27 | Robert Bosch Gmbh | Electronic device with circuit carrier in a plug-in housing |
| JP6148884B2 (en) * | 2013-03-19 | 2017-06-14 | 日立オートモティブシステムズ株式会社 | Electronic control unit |
| EP2866536A1 (en) * | 2013-10-25 | 2015-04-29 | Harman Becker Automotive Systems GmbH | Assembly and method for producing an assembly |
| CN104684329B (en) * | 2015-03-19 | 2018-05-11 | 上海克拉索富电子有限公司 | A kind of mechanism that is fixed and clamped for automobile air conditioner speed regulation module |
| DE102015010682A1 (en) * | 2015-08-19 | 2017-02-23 | Oliver Betz | assembly arrangement |
| CN205902279U (en) * | 2016-08-09 | 2017-01-18 | 广东高标电子科技有限公司 | Mounting structure and controller of power tube |
| CN211641771U (en) * | 2019-12-12 | 2020-10-09 | 法雷奥汽车空调湖北有限公司 | Control box and fan subassembly |
-
2019
- 2019-12-12 CN CN201922227345.1U patent/CN211641771U/en active Active
-
2020
- 2020-12-10 WO PCT/CN2020/135176 patent/WO2021115369A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115369A1 (en) * | 2019-12-12 | 2021-06-17 | 法雷奥汽车空调湖北有限公司 | Control box and fan assembly |
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|---|---|
| WO2021115369A1 (en) | 2021-06-17 |
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