rearview mirror housing

Abstract

This utility model discloses a rearview mirror housing. The key technical features include a housing, and further comprising: multiple grooved plates fixed to the inner wall of the housing, with adjacent grooved plates forming a guide channel; an air inlet hole on the housing, connected to the guide channel; a cover plate covering the grooved plates to integrally seal the guide channel, the cover plate being fixed inside the housing with screws; an inner air hole on the cover plate, each inner air hole corresponding to one guide channel, blowing air onto the back of the mirror in the housing; and an outer air hole on the cover plate, each outer air hole corresponding to one guide channel, blowing air onto the front of the mirror in the housing. The upper end of the cover plate is located at the upper end of the housing, and both the inner and outer air holes are located at the upper end of the cover plate. The guide channel integrated into the inner wall of the housing replaces the crisscrossing pipes at the housing opening, reducing the space occupied by the airflow channels at the housing opening and facilitating the installation of other components inside the housing.

Description

Technical Field

[0001] This utility model relates to a car rearview mirror, and more specifically, to a rearview mirror housing. Background Technology

[0002] Car rearview mirrors are prone to fogging. Due to the rainy season in summer, the temperature in underground parking garages is lower than the outdoor temperature, and fog easily forms on the rearview mirrors when the car is driven from the underground garage to the ground.

[0003] Therefore, existing technologies have designed air blowing structures for rearview mirrors to defog them. For example, a Chinese patent with publication number CN222713399U was found, entitled "A Plastic Housing for a Self-Inducing Defogging Car Rearview Mirror." It arranges a large number of crisscrossing guide tubes and diverter tubes inside the housing to guide the gas. However, the guide tubes and diverter tubes occupy a large amount of space inside the housing opening, making it difficult to install other components. Utility Model Content

[0004] The purpose of this utility model is to provide a rearview mirror housing that uses a guide groove integrated into the inner wall of the housing to replace the crisscrossing pipes at the opening of the housing, thereby reducing the space occupied by the airflow channel at the opening of the housing and facilitating the installation of other components inside the housing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A rearview mirror housing includes a housing and further includes: multiple slotted plates fixed to the inner wall of the housing, with adjacent slotted plates forming a guide channel; an air inlet hole on the housing, the air inlet hole communicating with the guide channel; a cover plate covering the slotted plates to integrally seal the guide channel, the cover plate being fixed inside the housing by screws; an inner air hole on the cover plate, one inner air hole corresponding to one guide channel, the inner air hole blowing air onto the back of the lens in the housing; and an outer air hole on the cover plate, one outer air hole corresponding to one guide channel, the outer air hole blowing air onto the front of the lens in the housing; the upper end of the cover plate is located at the upper end of the housing, and both the inner and outer air holes are located at the upper end of the cover plate.

[0007] Preferably, the number of guide grooves is at least four, and two adjacent guide grooves correspond to the inner air hole and the outer air hole, respectively.

[0008] Preferably, the inner wall of the housing is provided with threaded posts, and the screws of the cover plate are fixed to the threaded posts.

[0009] Preferably, the opening of the housing is provided with a rim shell, the rim shell is provided with an air inlet, the air inlet is fixed with an air nozzle, and the air nozzle and the external air hole are inserted to allow air to pass through.

[0010] The air inlet should face the front of the lens.

[0011] Preferably, the cover plate has an upper end cover and a lower end cover; the upper end cover blocks the upper opening of the guide channel;

[0012] The lower end cover seals the lower opening of the guide channel; the external air hole is covered by an upper end cover and is positioned facing the opening of the shell.

[0013] Preferably, the nozzle is adhered to the air inlet, and the end of the nozzle facing the outer air hole is a conical end, which is inserted into the outer air hole.

[0014] Preferably, the opening of the shell is provided with a raised edge, and the edge shell is provided with a pressing edge that is engaged with the raised edge.

[0015] Preferably, the air inlet is equipped with a switch assembly, which includes a seal that slides into the guide groove, the seal having a locking hole, a motor inside the housing, the motor rotating to pull the locking hole to align with the air inlet; and an elastic element inside the housing to pull the seal to close the air inlet.

[0016] Preferably, the channel plate and the shell are integrally injection molded.

[0017] In summary, this utility model has at least one of the following beneficial effects:

[0018] By replacing the crisscrossing pipes at the opening of the housing with flow channels integrated into the inner wall of the housing, the space occupied by the airflow delivery channels at the opening of the housing is reduced, which facilitates the installation of other components inside the housing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cover plate being fixed to the housing in the embodiment;

[0020] Figure 2 This is an exploded view of the cover plate and the shell in the embodiment;

[0021] Figure 3 This is an exploded view of the cover plate and the guide channel in the embodiment;

[0022] Figure 4 This is a schematic diagram showing the positions of the air inlet and the lens in the embodiment;

[0023] Figure 5 yes Figure 4 AA section view in the middle;

[0024] Figure 6 yes Figure 5 Enlarged view of part B in the image;

[0025] Figure 7 This is a schematic diagram of the switch assembly inside the housing in the embodiment;

[0026] Figure 8 yes Figure 7 Enlarged view of section C in the image.

[0027] In the picture:

[0028] 1. Shell;

[0029] 21. Channel plate; 22. Flow guide channel;

[0030] 3. Air intake;

[0031] 4. Cover plate; 41. Upper cover; 42. Lower cover;

[0032] 51. Internal vents; 52. External vents;

[0033] 61. Threaded post; 62. Screw;

[0034] 71. Edge-sealed shell; 72. Air inlet; 73. Air nozzle;

[0035] 81. Raised edge; 82. Pressed edge;

[0036] 91. Seal; 92. Keyhole; 93. Motor; 94. Elastic element; 95. Pull cord

[0037] 101. Lens. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] Example 1, a rearview mirror housing, referring to Figures 1-3 It includes a housing 1, which is injection molded, and the housing 1 has an external connection with a connector for connecting to a car.

[0040] The outer surface of housing 1 is coated with a glossy paint.

[0041] The inner wall of the housing 1 is provided with five slotted plates 21. In other embodiments, the number of slotted plates 21 can be 6, 7, 8, etc.

[0042] The five slot plates 21 and the shell 1 are integrally injection molded. The five slot plates 21 are arranged in parallel, and two adjacent slot plates 21 form a guide channel 22. Therefore, the five slot plates 21 form four guide channels 22.

[0043] The lower end of the guide channel 22 is located in the middle of the inner wall of the housing 1, and the upper end of the guide channel 22 is located at the upper end of the inner wall of the housing 1.

[0044] The housing 1 has an air inlet 3, which is connected to the guide groove 22; the air inlet 3 is located at the lower end of the guide groove 22.

[0045] Therefore, when the car is moving, the airflow flows from the air intake 3 into the guide channel 22.

[0046] The guide channel 22 is covered by a cover plate 4. The cover plate 4 has an upper end cover 41 and a lower end cover 42. The upper end cover 41 blocks the upper opening of the guide channel 22, and the lower end cover 42 blocks the lower opening of the guide channel 22.

[0047] The cover plate 4, the groove plate 21, and the inner wall of the shell 1 form an independent flow channel for the flow channel 22.

[0048] Furthermore, the cover plate 4 is provided with an inner air hole 51 and an outer air hole 52. One inner air hole 51 is connected to a guide groove 22, and one outer air hole 52 is connected to a guide groove 22. Two adjacent guide grooves 22 are respectively connected to the inner air hole 51 and the outer air hole 52.

[0049] Therefore, a total of two internal air holes 51 and two external air holes 52 are independently connected to four guide channels 22.

[0050] The inner wall of the housing 1 is integrally formed with a threaded post 61, and the screws 62 of the cover plate 4 are fixed to the threaded post 61.

[0051] The advantage of this design is that the air guide channel 22 is set close to the inside of the shell 1, avoiding the scattered arrangement of the air guide tube at the opening of the shell 1. This simple and integrated air guide channel 22 facilitates the assembly of other components inside the shell 1. A further advantage is that the channel plate 21 can be integrally injection molded with the shell 1, which is highly efficient in manufacturing. The installation of the cover plate 4 and the air guide channel 22 can be done with just screws 62, making the installation of the entire air guide pipeline very convenient.

[0052] The lens 101 is installed on the housing 1 later. The upper end of the housing 1 is closer to the lens 101 than the middle of the housing 1. Therefore, the upper end of the cover plate 4 is located at the upper end of the housing 1. The inner air hole 51 and the outer air hole 52 are located at the upper end of the cover plate 4. The purpose is to make the inner air hole 51 and the outer air hole 52 closer to the lens 101 so that the airflow can be blown more effectively towards the lens 101.

[0053] The internal air hole 51 faces the back of the lens 101, and air is blown onto the back of the lens 101;

[0054] The external vent 52 blows air onto the front of the lens 101 through the air nozzle 73.

[0055] The external vent 52 is provided with an upper end cover 41, and the external vent 52 faces the opening of the housing 1.

[0056] The opening of the housing 1 is provided with a edging shell 71, the edging shell 71 is provided with an air blowing port 72, the air blowing port 72 is fixed with an air nozzle 73, the air nozzle 73 is a rigid metal nozzle, the air nozzle 73 and the air blowing port 72 are connected by a square positioning port and then glued and fixed. Therefore, when the air nozzle 73 is positioned and installed on the air blowing port 72, the connection port of the air nozzle 73 faces the outer air hole 52.

[0057] Then, when the edge cover 71 covers the edge of the housing 1, the air nozzle 73 can be inserted into the outer air hole 52 accordingly.

[0058] To facilitate the insertion of the nozzle 73 into the external air hole 52, the end of the nozzle 73 facing the external air hole 52 is tapered, and the tapered end is inserted into the external air hole 52.

[0059] The air inlet 72 faces the front of the lens 101. Figure 5 and Figure 6 In the diagram, the dashed line indicates the direction of airflow.

[0060] The opening of the housing 1 is surrounded by a raised edge 81, which is integrally injection molded with the housing 1.

[0061] The edge-sealing shell 71 is fixed with a ring of pressing edge 82. The pressing edge 82 is set around the protruding edge 81 and is engaged with the protruding edge 81. A connecting plate is fixed inside the edge-sealing shell 71. The connecting plate and the shell 1 are fixed by threads.

[0062] Example 2, a rearview mirror housing, differs from Example 1 in that, referring to... Figure 7 and Figure 8 The air inlet 3 is equipped with a switch assembly, the housing 1 has a base, the base is fixed with a motor 93, the motor 93 is mounted with a rotating shaft, and the rotating shaft is fixed with a pull rope 95.

[0063] Five guide channels 22 are provided with sliding holes, and a sealing strip 91 is provided inside the sliding holes for sealing and sliding. The sealing strip 91 is provided with a lock hole 92.

[0064] Therefore, when the seal 91 slides, the lock hole 92 is aligned with the air inlet 3, and the air inlet 3 allows air to pass through the guide groove 22.

[0065] Seal 91 blocks the air inlet 3, and the airflow in the guide groove 22 is cut off.

[0066] The movement of the seal 91 is achieved by the cooperation of the motor 93 and the elastic element 94.

[0067] One end of the seal 91 is fixed with an elastic element 94, which is a rubber strip. One end of the rubber strip is fixed to a column inside the housing 1.

[0068] The other end of the seal 91 is fixed to the pull rope 95, and the pull rope 95 is fixed to the shaft of the motor 93.

[0069] When motor 93 rotates forward, the pull rope 95 moves the seal 91, aligning the lock hole 92. Figure 3 The air inlet 3 is in the middle, and at this time the elastic element 94 deforms;

[0070] Motor 93 reverses, pull rope 95 loosens, elastic element 94 resets, causing seal 91 to move in the opposite direction, and seal 91 blocks air inlet 3;

[0071] The rotation of motor 93 can be controlled via a car chip and onboard buttons.

[0072] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rearview mirror housing, comprising a housing (1), characterized in that, it further comprises... include: Multiple slotted plates (21) are fixed to the inner wall of the shell (1), and two adjacent slotted plates (21) form a guide channel (22); An air inlet (3) is provided in the housing (1), and the air inlet (3) is connected to the guide groove (22); A cover plate (4) is placed on the groove plate (21) to seal the guide groove (22) in one piece. The cover plate (4) is fixed inside the housing (1) by screws (62). An internal air hole (51) is opened in the cover plate (4), and one internal air hole (51) is connected to a guide groove (22). The internal air hole (51) blows air to the back of the lens (101) in the housing (1). An external air hole (52) is opened on the cover plate (4). Each external air hole (52) is connected to a guide groove (22). The external air hole (52) blows air onto the front of the lens (101) in the housing (1). The upper end of the cover plate (4) is located at the upper end of the shell (1), and the inner vent (51) and the outer vent (52) are both located at the upper end of the cover plate (4).

2. The rearview mirror housing according to claim 1, characterized in that: The number of guide grooves (22) is at least four, and two adjacent guide grooves (22) correspond to the inner air hole (51) and the outer air hole (52) respectively.

3. The rearview mirror housing according to claim 2, characterized in that: The inner wall of the housing (1) is provided with a threaded post (61), and the screws (62) of the cover plate (4) are fixed to the threaded post (61).

4. The rearview mirror housing according to claim 1, characterized in that: The opening of the housing (1) is provided with a edging shell (71), the edging shell (71) is provided with an air blowing port (72), the air blowing port (72) is fixed with an air nozzle (73), and the air nozzle (73) and the external air hole (52) are inserted to allow air to pass through. The air inlet (72) faces the front of the lens (101).

5. The rearview mirror housing according to claim 4, characterized in that: The cover plate (4) is provided with an upper cover (41) and a lower cover (42); The upper end cap (41) blocks the upper opening of the guide channel (22); The lower end cap (42) blocks the lower opening of the guide channel (22); An upper cover (41) is provided on the external vent (52), and the external vent (52) is positioned facing the opening of the housing (1).

6. The rearview mirror housing according to claim 5, characterized in that: The nozzle (73) is attached to the air inlet (72). The end of the nozzle (73) facing the outer air hole (52) is a tapered end, which is inserted into the outer air hole (52).

7. The rearview mirror housing according to claim 6, characterized in that: The opening of the housing (1) is provided with a raised edge (81), and the edge-sealing housing (71) is provided with a pressing edge (82) that is engaged with the raised edge (81).

8. The rearview mirror housing according to claim 1, characterized in that: The air inlet (3) is equipped with a switch assembly, which includes a seal (91) that slides into the guide groove (22). The seal (91) has a lock hole (92). The housing (1) is equipped with a motor (93). The motor (93) rotates and pulls the lock hole (92) to align with the air inlet (3). The housing (1) is provided with an elastic element (94) that pulls the seal (91) to close the air inlet (3).

9. The rearview mirror housing according to claim 1, characterized in that: The groove plate (21) and the shell (1) are integrally injection molded.

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