Three-door air conditioning module

Abstract

This utility model discloses a three-door air conditioning module, including a housing, a blower unit, and first, second, and third air dampers. The housing has a first internal air intake, a second internal air intake, and an external air intake. Each of the three dampers can rotate independently and can be adjusted between the internal and external circulation limit positions of its corresponding air intake, and can be locked at least two fixed angles at any position between the two limit positions. Through combinations of different opening degrees and positions of the three dampers, this module can not only achieve standard external and internal circulation modes, but also generate at least three partial circulation modes. This multi-mode switching mechanism can precisely adjust the air circulation state inside the vehicle, effectively reducing the energy consumption of the air conditioning system while meeting the comfort needs of passengers, and significantly improving the overall energy-saving effect of the vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning module technology. Specifically, this utility model relates to a three-door air conditioning module. Background Technology

[0002] Existing air conditioning intake modules cannot accurately control the ratio of air intake inside and outside the vehicle, which leads to energy waste, especially in new energy vehicles.

[0003] Existing air conditioning intake modules include at least two air dampers, but such modules still have some drawbacks. For example, a typical automotive air conditioning system includes an external air intake and an internal air intake. When set to partial recirculation mode, air from outside the vehicle can bypass the dampers and enter the passenger compartment, resulting in energy waste.

[0004] Chinese Patent Application No. 202311290020.2 discloses an air conditioning module, including a housing and a damper. The housing includes a main housing. The rotation shaft of the damper is rotatably disposed on the main housing. The air conditioning module further includes: a rod slidably disposed on the main housing; and a driven member disposed on the rotation shaft of the damper. The driven member is slidably engaged with the rod so as to be driven by the rod when the rod slides, thereby causing the damper to rotate on the main housing. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a three-door air conditioning module, with the purpose of improving energy efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a three-door air conditioning module, including a housing, a blower unit, and a first door, a second door, and a third door disposed on the housing, wherein a first internal air intake, a second internal air intake, and an external air intake are disposed on the housing.

[0007] The first damper can rotate between the inner circulation limit position and the outer circulation limit position corresponding to the first internal air intake, and can maintain at least two fixed angles at any position between the two limit positions;

[0008] The second damper can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding second internal air intake, and can maintain at least two fixed angles at any position between the two limit positions;

[0009] The third damper can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding external air intake, and can maintain at least two fixed angles at any position between the two limit positions;

[0010] By combining the first, second, and third air dampers at different positions, the three-damper air conditioning module can have an external circulation mode, an internal circulation mode, and at least three partial circulation modes to achieve different air circulation states.

[0011] In the external circulation mode, the first damper is in the external circulation limit position to close the first internal air intake, the second damper is in the external circulation limit position to close the second internal air intake, and the third damper is in the external circulation limit position to fully open the external air intake. Air can only enter the blower unit through the external air intake.

[0012] In the internal circulation mode, the first damper is at the internal circulation limit position to fully open the first internal air intake, the second damper is at the internal circulation limit position to fully open the second internal air intake, and the third damper is at the internal circulation limit position to close the external air intake. Air can only enter the blower unit through the first internal air intake and the second internal air intake.

[0013] The partial circulation mode includes partial circulation mode A, in which the first damper is fully open to the first internal air intake, the second damper is fully open to the second internal air intake, and the third damper is in a partial circulation position, allowing a small amount of air to enter the blower unit through the first internal air intake, the second internal air intake, and the external air intake.

[0014] The partial circulation mode includes partial circulation mode B, in which the first damper is in a partial circulation position, the second damper closes the second internal air intake, and the third damper is in a partial circulation position, allowing a small amount of air to enter the blower unit through the first internal air intake and the external air intake.

[0015] The partial circulation mode includes partial circulation mode C, in which the first damper is in a partial circulation position, the second damper closes the second internal air intake, and the third damper fully opens the external air intake, allowing a small amount of air to enter through the first internal air intake, while external air enters the blower unit through the external air intake.

[0016] The three-door air conditioning module further includes a first transmission gear rod and a second transmission gear rod, as well as a cam for driving the first transmission gear rod and the second transmission gear rod to rotate. There are at least two first transmission gear rods, which respectively drive the first door and the second door to rotate around their axes, and the second transmission gear rod drives the third door to rotate around its axis.

[0017] The axis of the first transmission gear is parallel to the axes of the first damper and the second damper, and the axis of the second transmission gear is parallel to the axis of the third damper.

[0018] The cam has a first groove, a second groove, and a third groove; the first groove is engaged with one of the first transmission gear rods, the second groove is engaged with the other first transmission gear rod, and the third groove is engaged with the third transmission gear rod.

[0019] The cam is configured to rotate about a cam rotation axis, which is parallel to the rotation axes of the first and second transmission gear rods.

[0020] The three-door air conditioning module of this utility model has the following beneficial effects:

[0021] 1. The first, second, and third air dampers can rotate independently. By combining the first, second, and third air dampers in different positions, the three-damper air conditioning module can have external circulation mode, internal circulation mode, and at least three partial circulation modes to achieve different air circulation states and improve energy-saving effect.

[0022] 2. The design of the air conditioning module is simple and compact because the cam can drive the first, second, and third air dampers, which are set parallel to the rotation axis, to rotate. Attached Figure Description

[0023] This manual includes the following figures, which illustrate the following:

[0024] Figure 1 This is a structural schematic diagram of the three-door air conditioning module of this utility model;

[0025] Figure 2 This is another structural schematic diagram of the three-door air conditioning module of this utility model;

[0026] Figure 3 This is a schematic diagram showing the connection between the transmission gear rod, the damper, and the cam;

[0027] Figure 4 This is another schematic diagram showing the connection between the transmission gear rod and the damper and cam;

[0028] Figure 5This is a schematic diagram of the structure of the three-door air conditioning module of this utility model after removing the cam;

[0029] Figure 6 This is a schematic diagram of the cam structure;

[0030] Figure 7 This is a schematic diagram of the inner loop mode;

[0031] Figure 8 This is a schematic diagram of the external circulation mode;

[0032] Figure 9 This is a schematic diagram of partial loop pattern A;

[0033] Figure 10 This is a schematic diagram of partial loop mode B;

[0034] Figure 11 This is a schematic diagram of partial loop mode C;

[0035] Figure 12 This is a line graph illustrating the relative rotational states of the three dampers in the air conditioning module;

[0036] The diagram is marked as follows:

[0037] 1. First air damper; 2. Second air damper; 3. Third air damper; 1a. First sliding pin; 2a. Second sliding pin; 3a. Third sliding pin; 1z. First internal air intake; 2z. Second internal air intake; 3z. External air intake; 4. First transmission gear rod; 5. Second transmission gear rod; 4a. First sliding pin; 5a. Second sliding pin; 6. Cam; 61. First groove; 62. Second groove; 63. Third groove; 80. Blower unit; 90. Housing. Detailed Implementation

[0038] The following discloses various embodiments or examples of the subject matter technical solutions. To simplify the disclosure, specific examples of the elements and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of protection of this utility model. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for brevity and clarity and does not in itself indicate a relationship between the various embodiments and / or structures to be discussed. Further, when the first element is described in a manner connected or combined with the second element, the description includes embodiments where the first and second elements are directly connected or combined with each other, as well as embodiments where one or more other intervening elements are incorporated to indirectly connect or combine the first and second elements with each other.

[0039] It should be noted that in the following embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution; they are merely for the convenience of description.

[0040] It is important to note that Figures 1 to 12 These are merely examples and are not drawn to scale, nor should they be used as a limitation on the scope of protection of this utility model.

[0041] like Figures 1 to 12 As shown, this utility model embodiment provides a three-door air conditioning module, including a housing 90, a blower unit 80, and a first air door 1, a second air door 2, and a third air door 3 disposed on the housing 90. The housing 90 is provided with a first internal air intake 1z, a second internal air intake 2z, and an external air intake 3z.

[0042] The first air damper 1 can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding first internal air intake 1z, and can maintain at least two fixed angles at any position between the two limit positions.

[0043] The second air damper 2 can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding second internal air intake 2z, and can maintain at least two fixed angles at any position between the two limit positions;

[0044] The third air damper 3 can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding external air intake 3z, and can maintain at least two fixed angles at any position between the two limit positions;

[0045] By combining the first air damper 1, the second air damper 2, and the third air damper 3 at different positions, the three-air damper air conditioning module can have an external circulation mode, an internal circulation mode, and at least three partial circulation modes to achieve different air circulation states.

[0046] In external circulation mode, the first damper 1 is in the external circulation limit position to close the first internal air intake 1z, the second damper 2 is in the external circulation limit position to close the second internal air intake 2z, and the third damper 3 is in the external circulation limit position to fully open the external air intake 3z. Air can only enter the blower unit 80 through the external air intake 3z.

[0047] In internal circulation mode, the first damper 1 is in the internal circulation limit position to fully open the first internal air intake 1z, the second damper 2 is in the internal circulation limit position to fully open the second internal air intake 2z, and the third damper 3 is in the internal circulation limit position to close the external air intake 3z. Air can only enter the blower unit 80 through the first internal air intake 1z and the second internal air intake 2z.

[0048] The partial circulation mode includes partial circulation mode A, in which the first damper 1 is fully opened, the second damper 2 is fully opened, the second internal air intake 2z is opened, and the third damper 3 is in a partial circulation position, so that a small amount of air can enter the blower unit 80 through the first internal air intake 1z, the second internal air intake 2z and the external air intake 3z.

[0049] The partial circulation mode includes partial circulation mode B, in which the first damper 1 is in the partial circulation position, the second damper 2 closes the second internal air intake 2z, and the third damper 3 is in the partial circulation position, allowing a small amount of air to enter the blower unit 80 through the first internal air intake 1z and the external air intake 3z.

[0050] The partial circulation mode includes partial circulation mode C, in which the first damper 1 is in the partial circulation position, the second damper 2 closes the second internal air intake 2z, and the third damper 3 fully opens the external air intake 3z, allowing a small amount of air to enter through the first internal air intake 1z, while external air enters the blower unit 80 through the external air intake 3z.

[0051] The three-door air conditioning module of this utility model embodiment also includes a first transmission gear rod 4 and a second transmission gear rod 5, as well as a cam 6 for driving the first transmission gear rod 4 and the second transmission gear rod 5 to rotate. There are at least two first transmission gear rods 4, which respectively drive the first damper 1 and the second damper 2 to rotate around their axes, and the second transmission gear rod 5 drives the third damper 3 to rotate around its axis.

[0052] The axis of the first transmission gear 4 is parallel to the axis of the first damper 1 and the second damper 2, and the axis of the second transmission gear 5 is parallel to the axis of the third damper 3.

[0053] The cam 6 has a first groove, a second groove and a third groove; the first groove is engaged with one of the first transmission gear rods 4, the second groove is engaged with the other first transmission gear rod 4, and the third groove is engaged with the third transmission gear rod.

[0054] Cam 6 is configured to rotate about its rotation axis, which is parallel to the rotation axis of the first transmission gear rod 4 and the second transmission gear rod 5.

[0055] like Figure 1 and Figure 2 As shown, the housing 90 is a hollow structure and defines an external air intake 3z, which is in fluid communication with the external space of the vehicle. Thus, air from the external space can enter the blower unit 80 through the external air intake 3z. The housing 90 also defines a first internal air intake 1z and a second internal air intake 2z. Thus, air from the vehicle interior can enter the blower unit 80 through the first internal air intake 1z and the second internal air intake 2z.

[0056] like Figure 1 and Figure 2 As shown, the blower unit 80 is operable to draw air into the passenger compartment of the vehicle through the external air intake 3z, the first internal air intake 1z, and the second internal air intake 2z.

[0057] like Figure 1 and Figure 2 As shown, the first damper 1, the second damper 2, and the third damper 3 are disposed inside the housing 90. The axis of rotation of the first damper 1 is set as the first axis XX, the axis of rotation of the second damper 2 is set as the second axis YY, and the axis of rotation of the third damper 3 is set as the third axis ZZ. The housing 90 can support the first damper 1, the second damper 2, and the third damper 3 to rotate respectively.

[0058] like Figure 3 and Figure 4 As shown, the three-door air conditioning module also includes a cam 6, which is used to drive the first door 1 to rotate around the first axis, drive the second door 2 to rotate around the second axis, and drive the third door 3 to rotate around the third axis.

[0059] The three-door air conditioning module also includes at least two first transmission gear rods 4 and second transmission gear rods 5; the cam 6 drives the first damper 1 to rotate around the rotation axis XX through one of the first transmission gear rods 4; the cam 6 drives the third damper 3 to rotate around the rotation axis YY through the other first transmission gear rod 4; the cam 6 drives the third damper 3 to rotate around the rotation axis ZZ through the second transmission gear rod 5.

[0060] like Figure 3 , Figure 4 , Figure 5As shown, one of the first transmission gear rods 4 is configured to rotate around the transmission rod axis X1-X1 to drive the first damper 1 to rotate around the first axis; the transmission rod axis X1-X1 is parallel to the first axis. The housing 90 can support the rotation of the first transmission gear rod 4. One end of the first transmission gear rod 4 has a first sliding pin 4a, and the other end has a first driving tooth 4b. The first driving tooth 4b meshes with a gear provided at the end of the first damper 1. The first sliding pin 4a is offset from the transmission rod axis X1-X1.

[0061] like Figure 3 , Figure 4 , Figure 5 As shown, another first transmission gear 4 is configured to rotate around the transmission rod axis Y1-Y1 to drive the second damper 2 to rotate around the second axis; the transmission rod axis Y1-Y1 is parallel to the second axis. The housing 90 can support the rotation of the other first transmission gear 4. One end of the first transmission gear 4 has a first sliding pin 4a, and the other end has a first driving tooth 4b. The first driving tooth 4b meshes with a gear provided at the end of the second damper 2. The first sliding pin 4a is offset from the transmission rod axis X1-X1.

[0062] like Figure 3 , Figure 4 , Figure 5 As shown, the second transmission gear 5 is configured to rotate around the transmission rod axis Z1-Z1 to drive the third damper 3 to rotate around the third axis; the transmission rod axis Z1-Z1 is parallel to the third axis. The housing 90 supports the rotation of the second transmission gear 5. One end of the second transmission gear 5 has a first sliding pin 5a, and the other end has a first driving tooth 5b. The second driving tooth 5b meshes with a gear located at the end of the third damper 3. The second sliding pin 5a is offset from the transmission rod axis Z1-Z1.

[0063] like Figure 6 As shown, the cam 6 has a first groove 61, a second groove 62, and a third groove 63; more specifically, the first groove 61 is slidably engaged with the first sliding pin 4a of one of the first transmission gear rods 4, the second groove 62 is slidably engaged with the first sliding pin 4a of the other first transmission gear rod 4, and the third groove 63 is slidably engaged with the second sliding pin 5a of the second transmission gear rod 5.

[0064] like Figure 1 As shown, cam 6 is configured to rotate about cam axis HH; cam axis HH is parallel to the first axis, the second axis, and the third axis. Housing 90 supports the rotation of cam 6.

[0065] like Figure 5 , Figure 6As shown, the first groove 61, the second groove 62, and the third groove 63 have different extension trajectories, enabling the first damper 1, the second damper 2, and the third damper 3 to have different motion modes. When the cam 6 rotates, the two first sliding pins 4a move within the first groove 61 and the second groove 62 respectively. Based on the change in the distance of the first sliding pins 4a relative to the axis HH of the cam 6, the first groove 61 and the second groove 62 apply different forces to the two first sliding pins 4a, causing the two first transmission gear rods 4 to rotate around the transmission rod axis. When the cam 6 rotates, the second sliding pin 5a moves within the third groove 63. Based on the change in the distance of the second sliding pin 5a relative to the axis HH of the cam 6, the third groove 63 applies different forces to the second sliding pin 5a, causing the second transmission gear rod 5 to rotate around the transmission rod axis.

[0066] like Figure 7 As shown, the first damper 1, the second damper 2, and the third damper 3 can rotate between the internal circulation limit position and the external circulation limit position, and can maintain at least two fixed angles at any position between the two limit positions. At the external circulation limit position, the first damper 1 blocks the first internal air intake 1z, and the second damper 2 blocks the second internal air intake 2z. The third damper 3 is positioned in the central region of the external air intake 3z to fully open it. Thus, air can enter the blower unit 80 through the external air intake 3z, and air cannot enter the blower unit 80 through the first internal air intake 1z or the second internal air intake 2z. In this way, the external air introduced into the vehicle is fresh.

[0067] like Figure 8 As shown, when the first damper 1, the second damper 2, and the third damper 3 are at their internal circulation limit positions, the first damper 1 is set to fully open the first internal air intake 1z, and the second damper 2 is set to fully open the second internal air intake 2z. The third damper 3 blocks the external air intake 3z. In this way, air can enter the blower unit 80 through the first internal air intake 1z and the second internal air intake 2z, but air cannot enter the blower unit 80 through the external air intake 3z. This method can more effectively reduce energy consumption.

[0068] like Figure 9As shown, when the first air damper 1, the second air damper 2, and the third air damper 3 are in partial circulation mode A, the first air damper 1 is set to fully open the first internal air intake 1z, and the second air damper 2 is set to fully open the second internal air intake 2z. The third air damper 3 is in partial circulation position 3a, and the third air damper 3 is not fully open the external air intake 3z. Thus, air can enter the blower unit 80 through the first internal air intake 1z and the second internal air intake 2z, and a small amount of air can also enter the blower unit 80 through the external air intake 3z. In this way, the vehicle can introduce an appropriate amount of fresh external air while also meeting the occupants' need for rapid cooling.

[0069] like Figure 10 As shown, when the first air damper 1, the second air damper 2, and the third air damper 3 are in partial recirculation mode B, the first air damper 1 is in partial recirculation position 1b, and the first internal air intake 1z is not fully open. The second air damper 2 blocks the second internal air intake 2z, and the second internal air intake 2z is closed. The third air damper 3 is in partial recirculation position 3a, and the third air damper 3 is not fully open the external air intake 3z. Thus, air can enter the blower unit 80 through the first internal air intake 1z, and a small amount of air can also enter the blower unit 80 through the external air intake 3z. In this way, the vehicle can introduce an appropriate amount of fresh external air while maintaining low energy consumption.

[0070] like Figure 11 As shown, when the first air damper 1, the second air damper 2, and the third air damper 3 are in the partial recirculation mode C, the first air damper 1 is in the partial recirculation position 1c, the second air damper 2 blocks the second internal air intake 2z, and the third air damper 3 is in the state of fully opening the external air intake 3z. In this way, a small amount of air from inside the vehicle can enter the blower unit 80 through the first internal air intake 1z, and external air can also enter the blower unit 80 through the external air intake 3z. In this manner, the vehicle can reduce energy consumption while maintaining the necessary ventilation for occupants.

[0071] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A three-door air conditioning module, characterized in that: It includes a housing, a blower unit, and a first damper, a second damper, and a third damper disposed on the housing. The housing is provided with a first internal air intake, a second internal air intake, and an external air intake. The first damper can rotate between the inner circulation limit position and the outer circulation limit position corresponding to the first internal air intake, and can maintain at least two fixed angles at any position between the two limit positions; The second damper can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding second internal air intake, and can maintain at least two fixed angles at any position between the two limit positions; The third damper can rotate between the inner circulation limit position and the outer circulation limit position of the corresponding external air intake, and can maintain at least two fixed angles at any position between the two limit positions; By combining the first, second, and third air dampers at different positions, the three-damper air conditioning module can have an external circulation mode, an internal circulation mode, and at least three partial circulation modes to achieve different air circulation states.

2. The three-door air conditioning module according to claim 1, characterized in that: In the external circulation mode, the first damper is in the external circulation limit position to close the first internal air intake, the second damper is in the external circulation limit position to close the second internal air intake, and the third damper is in the external circulation limit position to fully open the external air intake. Air can only enter the blower unit through the external air intake.

3. The three-door air conditioning module according to claim 1, characterized in that: In the internal circulation mode, the first damper is at the internal circulation limit position to fully open the first internal air intake, the second damper is at the internal circulation limit position to fully open the second internal air intake, and the third damper is at the internal circulation limit position to close the external air intake. Air can only enter the blower unit through the first internal air intake and the second internal air intake.

4. The three-door air conditioning module according to any one of claims 1 to 3, characterized in that: The partial circulation mode includes partial circulation mode A, in which the first damper is fully open to the first internal air intake, the second damper is fully open to the second internal air intake, and the third damper is in a partial circulation position, allowing a small amount of air to enter the blower unit through the first internal air intake, the second internal air intake, and the external air intake.

5. The three-door air conditioning module according to any one of claims 1 to 3, characterized in that: The partial circulation mode includes partial circulation mode B, in which the first damper is in a partial circulation position, the second damper closes the second internal air intake, and the third damper is in a partial circulation position, allowing a small amount of air to enter the blower unit through the first internal air intake and the external air intake.

6. The three-door air conditioning module according to any one of claims 1 to 3, characterized in that: The partial circulation mode includes partial circulation mode C, in which the first damper is in a partial circulation position, the second damper closes the second internal air intake, and the third damper fully opens the external air intake, allowing a small amount of air to enter through the first internal air intake, while external air enters the blower unit through the external air intake.

7. The three-door air conditioning module according to any one of claims 1 to 3, characterized in that: It also includes a first transmission gear rod and a second transmission gear rod, as well as a cam for driving the first transmission gear rod and the second transmission gear rod to rotate, wherein there are at least two first transmission gear rods, which respectively drive the first damper and the second damper to rotate about their axes, and the second transmission gear rod drives the third damper to rotate about its axis.

8. The three-door air conditioning module according to claim 7, characterized in that: The axis of the first transmission gear is parallel to the axes of the first damper and the second damper, and the axis of the second transmission gear is parallel to the axis of the third damper.

9. The three-door air conditioning module according to claim 7, characterized in that: The cam (6) has a first groove, a second groove and a third groove; the first groove is engaged with one of the first transmission gear rods, the second groove is engaged with the other first transmission gear rod, and the third groove is engaged with the third transmission gear rod.

10. The three-door air conditioning module according to claim 7, characterized in that: The cam is configured to rotate about a cam rotation axis, which is parallel to the rotation axes of the first and second transmission gear rods.

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