Split type automobile air conditioner speed regulation module with high reliability

Abstract

The utility model discloses a split type automobile air conditioner speed regulation module with high reliability, which belongs to the technical field of vehicle-mounted air conditioner parts and comprises an upper cover, a base and radiating fins, the upper cover is mounted at the top of the base, the radiating fins are mounted at the bottom of the base, a first glue groove is formed in one side, close to the upper cover, of the base, and a second glue groove is formed in the other side of the base. Two PCBA fool-proof positioning columns are symmetrically arranged in the base, two clamping grooves are formed in the base, a second glue groove is formed in the side, close to the cooling fins, of the base, and two second sealing bosses are symmetrically arranged in the base and located on the second glue groove. The base is connected with the upper cover in a buckled mode, the base is provided with the first glue groove, the upper cover is provided with the boss, the base and the upper cover are matched with each other, assembling is simple, sealing performance is high, the base is connected with the cooling fins through bolts, the second glue groove with a certain angle is formed in the installation face of the base and the cooling fins, an installation platform is reserved on the top, glue overflowing is effectively avoided, and meanwhile the bonding effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle air conditioning component technical field, concretely is a split type automobile air conditioning speed regulation module with high reliability. BACKGROUND

[0002] With the rapid development of economy, the world automobile ownership is rapidly increasing, the rapid development of automobile industry leads to the market competition increasing day by day, and the requirement of consumer to automobile performance, comfort, safety is increasing, and the reliability of product becomes an important content of market competition, automobile air conditioning speed regulation module is the core component in air conditioning system, adjusts the device of wind speed through the control of the rotational speed of blower, and the advantage and the inferiority of speed regulation module directly influence the comfort of automobile;

[0003] The traditional speed regulation module fin assembly adopts integrated structure, is heavy, and the cost is high, cannot satisfy the development trend of lightweight and miniaturization of automobile industry parts, and the cost of later maintenance or rework is high, simultaneously, most integrated fin assemblies adopt die casting, and defects such as blowhole, shrinkage, crack, cold shut are prone to occur inside, and the air tightness of product is difficult to effectively guarantee, and the existing product on the market generally combines the base and the fin together through integrated injection molding, wherein the base is plastic material, this structure is more complex and high in cost, and there is the possibility of air leakage between the plastic base and the metal fin under severe working conditions, which is difficult to meet the increasingly stringent IP protection level requirements;

[0004] In addition, the temperature fuse and the MOS tube are installed on the base during assembly of most existing speed regulation modules, which leads to complex base structure and high cost, and another assembly method is to paste the temperature fuse on the fin, but there is no matching installation groove between the two, and the contact mode is linear contact, which is prone to cause fuse friction or vibration failure during long-term use, thereby reducing the service life of the product, therefore, a split type automobile air conditioning speed regulation module with high reliability is provided. SUMMARY

[0005] The utility model discloses a split type automobile air conditioning speed regulation module with high reliability, which solves the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a split type automobile air conditioning speed regulation module with high reliability, comprising an upper cover, a base and a fin, the upper cover is installed on the top of the base, the fin is installed on the bottom of the base, a glue groove one is formed on the side of the base close to the upper cover, two PCBA anti-fool positioning columns are symmetrically arranged in the base, two clamping grooves are formed on the base, a glue groove two is arranged on the side of the base close to the fin, and two sealing bosses two are symmetrically arranged in the base and located on the glue groove two.

[0007] As a further preferred of the technical solution: opening the glue groove one to undertake the boss, thereby improving the sealing of the module as a whole, and the PCBA foolproof positioning column is convenient for the quick positioning and installation of the PCBA assembly, and the PCBA foolproof positioning column can also be used as the installation foolproof structure of the PCBA assembly, and at the same time, the clamping groove undertakes the buckle, thereby further fixing the installation effect between the upper cover and the base.

[0008] As a further preferred of the technical solution: the sealing boss two is arranged in a circular arc shape, thereby cooperating with the installation groove, so as to further improve the sealing of the module as a whole.

[0009] As a further preferred of the technical solution: the upper cover bottom is provided with a boss, the upper cover is provided with two buckles inside, the upper cover is provided with a plurality of grooves, and the upper cover is provided with a clamping block in the groove, the boss is clamped into the glue groove one, the sealing between the upper cover and the base is completed, the buckle is clamped into the clamping groove, the fixing between the upper cover and the base is completed, and at the same time, the clamping block clamps the base, thereby further improving the fixing effect.

[0010] As a further preferred of the technical solution: the two buckles are diagonally arranged, and the plurality of clamping blocks are symmetrically arranged, which is convenient for the installation and fixing of the base.

[0011] Among them, the two clamping grooves are diagonally arranged, and the buckle is matched with the clamping groove, and the above-mentioned arrangement completes the installation and fixing work between the upper cover and the base.

[0012] As a further preferred of the technical solution: the upper cover top is provided with a sealing boss one, and the sealing boss one is provided with a convex plug, the sealing boss one and the convex plug are used to conveniently connect the base, and the sealing boss one is used to increase the internal space of the module as a whole, thereby increasing the overall heat dissipation performance.

[0013] As a further preferred of the technical solution: the top of the heat sink is respectively provided with a MOS positioning groove and an installation groove, the MOS positioning groove is located on one side of the installation groove, the MOS positioning groove undertakes the MOS tube, and it is convenient to observe whether the assembly is in place, thereby improving the production efficiency, and the installation groove can form a surface contact between the temperature fuse and the heat sink, thereby reducing the abrasion caused by vibration and improving the heat dissipation efficiency.

[0014] As a further preferred of the technical solution: the base is installed with a PCBA assembly, the PCBA assembly is installed with a MOS tube at the bottom, the MOS tube is installed with a connecting piece, the connecting piece is installed with a temperature fuse at one side of the MOS tube, and the MOS tube is installed on the top of the heat sink, and two openings are arranged on the PCBA assembly, thereby facilitating the installation and fixing of the temperature fuse.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1、 The utility model discloses a heat dissipation fin is sectional material cutting, and the base and the upper cover are injection molding parts, and the heat dissipation fin is connected with the base through the bolt, and the upper cover is connected with the base through the buckle, and the MOS pipe and the temperature fuse are fixed on the heat dissipation fin through the connecting sheet with the bolt, the overall weight of module is small, simple structure, and it is convenient to install, and the production cost is low, and the production efficiency is high, and the reliability is strong, to meet the dustproof, waterproof requirement of customer;

[0017] 2、 The utility model discloses a base and upper cover are connected through the buckle, and the base is equipped with glue groove no. 1, and the upper cover is equipped with boss, and the both mutually cooperate, and simple assembly, and the sealing property is strong, and the base is connected with the heat dissipation fin through the bolt, and the base and the heat dissipation fin mounting surface are equipped with glue groove no. 2 with certain angle, and the top has installation platform, effectively avoid the overflow glue while improving the bonding effect, and glue groove no. 2 is equipped with two sealed boss no. 2, and it is circular arc, and cooperates with the installation groove, and improves the sealing property of module whole;

[0018] 3、 The utility model discloses a left and right glue surface of glue groove no. 1 exists height difference, and the left glue surface is lower than the right glue surface, to guarantee that the base and the upper cover are bonded, and the glue groove no. 1 does not produce the air in the process, to guarantee that the glue amount is uniform, and the bottom and the mouth of glue groove no. 1 are equipped with round angle or chamfer, to avoid the notch and the dead angle when hitting the sealing silica gel, to guarantee that the sealing glue is uniformly distributed in it after installation;

[0019] 4、 The utility model discloses a heat dissipation fin is equipped with the installation groove that is adapted to the temperature fuse, and the temperature fuse is contacted with the heat dissipation fin after installation, and the reliability is high, and the heat dissipation efficiency of temperature fuse can be improved, and the service life of product is increased, and the PCBA foolproof positioning column that is set is used for the quick positioning installation of PCBA assembly, and is used as the installation foolproof structure of PCBA assembly;

[0020] 5、 The utility model discloses a heat dissipation fin is installed after completion, can form the sealing of installation groove, increase the sealing property, and the effect of foolproof is played, and the heat dissipation fin is equipped with groove body, and the shape of groove body can be customized according to actual use, and the direction is radial or axial, and is used for the installation reference of MOS pipe, and whether the assembly is in place is observed, and the production efficiency is improved, and the convex rib of heat dissipation fin fin is equipped with two sides, and the convex rib is circular arc, triangle, trapezoidal or the like, and the heat dissipation area is increased, and the heat dissipation efficiency is improved. DRAWINGS

[0021] Figure 1 It is the structure diagram of the utility model discloses a kind of high reliability split type automobile air conditioner speed regulating module;

[0022] Figure 2The utility model relates to a high reliability split type automobile air conditioner speed regulating module's explosion structure schematic diagram;

[0023] Figure 3 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's cross section structure schematic diagram;

[0024] Figure 4 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's first explosion structure schematic diagram of base and PCBA component;

[0025] Figure 5 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's second explosion structure schematic diagram of base and PCBA component;

[0026] Figure 6 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's structure schematic diagram of upper cover;

[0027] Figure 7 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's structure schematic diagram of base;

[0028] Figure 8 The utility model relates to a high reliability split type automobile air conditioner speed regulating module's structure schematic diagram of fin.

[0029] In the drawing: 1, upper cover;11, boss;12, buckle;13, clamping block;14, sealing boss one;15, convex plug;2, base;21, glue groove one;22, PCBA foolproof positioning column;23, clamping groove;24, sealing boss two;25, glue groove two;3, fin;31, MOS positioning groove;32, installation groove;4, PCBA component;5, MOS tube;6, connecting piece;7, temperature fuse. Specific implementation

[0030] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment.

[0031] Embodiment 1

[0032] Please refer to Figures 1-8The utility model provides a kind of technical scheme: a high reliability split type automobile air conditioner speed regulating module, including upper cover 1, base 2 and fin 3, upper cover 1 is connected in base 2 top, fin 3 is connected by bolt screw thread in base 2 bottom, base 2 is close to the side of upper cover 1 and is equipped with glue groove one 21, two PCBA foolproof positioning columns 22 are integrally formed in base 2, two clamping grooves 23 are equipped in base 2, base 2 is close to the side of fin 3 and is integrally formed with glue groove two 25, two sealing bosses two 24 are integrally formed in base 2 and located on glue groove two 25.

[0033] In the embodiment, specifically: the established glue groove one 21 is used to support the boss 11, thereby improving the sealing of the module as a whole, the PCBA foolproof positioning column 22 is used for the quick positioning and installation of the PCBA component 4, and the PCBA foolproof positioning column 22 can also be used as the installation foolproof structure of the PCBA component 4, and at the same time, the clamping groove 23 is used to support the buckle 12, thereby further fixing the installation effect between the upper cover 1 and the base 2.

[0034] In the embodiment, specifically: the left and right glue surfaces of the glue groove one 21 have a height difference, the left glue surface is lower than the right glue surface, so that when the base 2 and the upper cover 1 are bonded, no air is trapped in the glue groove one 21, thereby ensuring uniform glue amount.

[0035] In the embodiment, specifically: the bottom and the mouth of the glue groove one 21 are provided with a round corner or a chamfer, so as to avoid the gap and the dead angle when the sealing silica gel is punched, thereby ensuring that the sealing glue is uniformly distributed in the installation after installation.

[0036] In the embodiment, specifically: the sealing boss two 24 is arranged in a circular arc shape, so that it cooperates with the installation groove 32, thereby further improving the sealing of the module as a whole.

[0037] In the embodiment, specifically: the installation surface of the base 2 and the fin 3 is provided with the glue groove two 25 with an angle of 5°-20°, and an installation platform with a thickness of 0.2mm-2mm is reserved, so as to effectively avoid glue overflow and improve the bonding effect.

[0038] In the embodiment, specifically: the upper cover 1 and the base 2 form a sealing structure, the cross section of the sealing boss one 14 is rectangular, and the three surfaces of the glue groove two 25 each have a gap of 0.2mm-1mm.

[0039] In the embodiment, specifically: the fin 3 is provided with a groove body, the groove body adopts I type or T type or L type, and the direction is radial or axial, and the fin 3 is provided with a convex rib on both sides, which is circular arc or triangular or trapezoidal, etc., so as to increase the heat dissipation area and improve the heat dissipation efficiency.

[0040] In this embodiment, specifically: the bottom of the upper cover 1 is integrally formed with a boss 11, and two buckles 12 are integrally formed inside the upper cover 1. Multiple grooves are provided on the upper cover 1, and a locking block 13 is integrally formed on the upper cover 1 and located in the groove. The boss 11 is used to lock into the opening of the glue groove 21 to complete the sealing between the upper cover 1 and the base 2. The buckles 12 are used to lock into the locking groove 23 to complete the fixing between the upper cover 1 and the base 2. At the same time, the locking block 13 is used to lock the base 2 to further improve the fixing effect.

[0041] In this embodiment, specifically: the top of the upper cover 1 is integrally formed with a sealing boss 14, and the sealing boss 14 is integrally formed with a U-shaped plug 15. The sealing boss 14 and the U-shaped plug 15 are both used to facilitate the connection of the base 2. The sealing boss 14 is used to increase the overall internal space of the module, thereby increasing its overall heat dissipation performance.

[0042] In this embodiment, specifically: the top of the heat sink 3 is provided with a MOS positioning groove 31 and a mounting groove 32. The MOS positioning groove 31 is located on one side of the mounting groove 32. The MOS positioning groove 31 is used to receive the MOS tube 5 on the one hand, and to facilitate observation of whether the assembly is in place, thereby improving production efficiency. The mounting groove 32 allows the thermal fuse 7 to form a surface contact with the heat sink 3, thereby reducing wear caused by vibration and improving heat dissipation efficiency.

[0043] Example 2

[0044] A highly reliable split-type automotive air conditioning speed control module has two buckles 12 arranged diagonally and multiple clips 13 arranged symmetrically. The above arrangement facilitates the installation and fixing of the base 2.

[0045] The two slots 23 are arranged diagonally, and the buckle 12 is adapted to the slots 23. The installation and fixing of the top cover 1 and the base 2 are completed through the above settings.

[0046] In this embodiment, specifically: a PCBA assembly 4 is installed inside the base 2, a MOS transistor 5 is snapped into the bottom of the PCBA assembly 4, a connecting piece 6 is installed on the MOS transistor 5, a thermal fuse 7 is installed on the connecting piece 6 and located on one side of the MOS transistor 5, and the MOS transistor 5 is connected to the top of the heat sink 3 by bolt thread. By opening two notches on the PCBA assembly 4, the installation and fixation of the thermal fuse 7 can be facilitated.

[0047] Working principle: The heat sink 3 is cut from a profile, and the base 2 and the top cover 1 are injection molded parts. During installation, the heat sink 3 and the base 2 are connected by bolt threads, while the top cover 1 and the base 2 are connected by buckles 12. At the same time, the MOSFET 5 and the thermal fuse 7 are fixed to the heat sink 3 by bolts through the connecting piece 6. The module has a small overall weight, simple structure, is easy to install, has low production cost, high production efficiency, and strong reliability, and can meet the customer's dustproof and waterproof requirements.

[0048] The base 2 and the top cover 1 are connected by a buckle 12. The base 2 is provided with a first glue groove 21 and the top cover 1 is provided with a boss 11. The two cooperate with each other, making assembly simple and sealing strong. The base 2 and the heat sink 3 are connected by bolts. The mounting surfaces of the base 2 and the heat sink 3 are provided with a second glue groove 25 with a certain angle. The top is provided with an installation platform, which effectively avoids glue overflow while ensuring the bonding effect. The second glue groove 25 of the base 2 is provided with two sealing bosses 24. The sealing bosses 24 are arc-shaped. After the heat sink 3 is installed, it can form a seal on the mounting groove 32, increasing the sealing performance and playing a foolproof role.

[0049] The heat sink 3 is provided with a mounting slot 32 that is compatible with the thermal fuse 7. After installation, the thermal fuse 7 is in surface contact with the heat sink 3, which not only ensures high reliability but also improves the heat dissipation efficiency of the thermal fuse 7 and increases the service life of the product.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-reliability split type automobile air conditioner speed regulating module, comprising an upper cover (1), a base (2) and a heat sink (3), wherein the upper cover (1) is installed on the top of the base (2), and the heat sink (3) is installed on the bottom of the base (2), characterized in that: The base (2) is provided with a glue groove I (21) near one side of the upper cover (1), two PCBA anti-fool positioning columns (22) are symmetrically arranged in the base (2), two clamping grooves (23) are arranged on the base (2), the base (2) is provided with a glue groove II (25) near one side of the heat dissipation fin (3), and two sealing bosses II (24) are symmetrically arranged in the base (2) and located on the glue groove II (25).

2. The high reliability split type automobile air conditioner speed control module according to claim 1, characterized in that: The upper cover (1) is provided with a boss (11) at the bottom, two buckles (12) are arranged in the upper cover (1), a plurality of grooves are arranged on the upper cover (1), and a clamping block (13) is arranged on the upper cover (1) and located in the groove.

3. The high reliability split automotive air conditioning speed control module of claim 2, wherein: The two buckles (12) are arranged at opposite angles, and the plurality of clamping blocks (13) are symmetrically arranged with each other. Among them, the two clamping grooves (23) are arranged at opposite angles, and the buckle (12) is matched with the clamping groove (23).

4. The high reliability split automotive air conditioning speed control module of claim 1, wherein: The upper cover (1) is provided with a sealing boss I (14) at the top, and a convex-shaped plug (15) is arranged on the sealing boss I (14).

5. The high reliability split automotive air conditioning speed control module of claim 1, wherein: The heat dissipation fin (3) is provided with a MOS positioning groove (31) and a mounting groove (32) at the top, respectively, and the MOS positioning groove (31) is located on one side of the mounting groove (32).

6. The high reliability split automotive air conditioning speed control module of claim 1, wherein: The base (2) is provided with a PCBA assembly (4), the PCBA assembly (4) is provided with a MOS tube (5) at the bottom, the MOS tube (5) is provided with a connecting plate (6), the connecting plate (6) is provided with a temperature fuse (7) on one side of the MOS tube (5), and the MOS tube (5) is mounted on the top of the heat dissipation fin (3).

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