Variable frequency air conditioner signal filter

Abstract

The utility model discloses a variable frequency air conditioner signal filter comprising a filter housing, one side surface of the filter housing is provided with a side positioning protection plate used for positioning and installing the filter housing on an air conditioner internal housing; according to the utility model, after the power supply output wire harness on the filter shell penetrates into the shielding shell in the air conditioner by utilizing the waveguide screw rod piece, the locking nut is rotated and locked from one end of the inner side of the shielding shell, so that the filter shell can be firmly fixed on the shielding shell, and meanwhile, the power supply output wire harness can be protected in the waveguide screw rod piece; the phenomenon that a power output wire harness is pulled and damaged due to vibration of the filter shell is reduced, and the filter shell is attached to the shielding shell in the air conditioner through the side positioning protection plate and is locked through the positioning lock rod, so that the filter is firmly positioned on the surface of the shielding shell in the air conditioner. And the problem that the filter shell swings unstably due to vibration is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a variable frequency air conditioner signal filter. Background Art

[0002] Air conditioning filters are generally power filters. On the one hand, they can prevent harmonics in the power grid from entering the air conditioning electrical system to avoid affecting the normal operation of the air conditioner. On the other hand, air conditioners, especially variable frequency air conditioners, will generate high-frequency harmonics during operation. These harmonics will be injected into the power grid, thereby affecting the normal operation of other electrical appliances in the home. Air conditioning filters can prevent the harmonics generated by the air conditioner from affecting the electrical appliances around the air conditioner. In order to prevent the vibration generated when the air conditioner is working from causing the filter to shake in the plastic shell, the filter in the prior art uses an insulating sleeve of the same size as the filter body. Although this can prevent the filter body from vibrating back and forth in the plastic shell and emitting unnecessary abnormal noises, it will still have a greater impact on the filter body.

[0003] To this end, an air conditioning filter with a bulletin number of "CN208623336U" includes a shell, a filter body is arranged inside the shell, and two corresponding damping mechanisms are arranged at the upper and lower edges of the filter body, and the damping mechanism includes two first connecting rods, one end of the two first connecting rods is rotatably connected to the edge of the filter body through a rotating shaft, and the ends of the two first connecting rods away from the filter body are rotatably sleeved with a hinge shaft, and the side walls of the two hinge shafts are rotatably sleeved with a second connecting rod, and the two second connecting rods are hinged to the first connecting rod through the hinge shaft, and the second connecting rod and the first connecting rod form an "L" shape, and the inner top of the shell is provided with two parallel rotating grooves, and the inner walls of the two rotating grooves are rotatably connected with corresponding rotating rods. The utility model uses the setting of the damping mechanism to reduce the impact of the vibration generated when the air conditioner is working on the filter body.

[0004] However, for the above-mentioned air-conditioning filter, although when the filter body vibrates, it drives the first connecting rod to rotate around the rotating shaft, and the rotation of the first connecting rod drives the hinge shaft to vibrate, since the two corresponding hinge shafts are connected by a spring, the filter body can buffer part of the vibration, thereby reducing the impact of the vibration generated when the air conditioner is working on the filter body. However, there are still the following obvious defects during use: when the outer shell is hit, the buffer structure can play an anti-vibration role, but due to the amplitude of the vibration, the filter will cause the filter to swing up and down inside the outer shell under the operation of the buffer structure, so that the swing of the filter will cause pulling between the wire and the inner triangle plug and cause damage. Utility Model Content

[0005] The purpose of the utility model is to provide a variable frequency air conditioner signal filter to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a variable frequency air conditioner signal filter, comprising:

[0007] A filter housing, wherein one side of the filter housing is provided with a side positioning guard plate for positioning the filter housing on the inner housing of the air conditioner, a waveguide screw member for wrapping and protecting the power outlet terminal is sleeved on the power output harness of the filter housing, and two shielding gaskets for installation on the inner and outer surfaces of the inner housing of the air conditioner are sleeved on the waveguide screw member;

[0008] An outer guard plate is arranged on the other side of the filter housing to protect the outer side of the filter housing from collision. A wiring sheath tube fixed to the bottom of the filter housing is sleeved on the power input harness of the filter housing.

[0009] Preferably, the external thread of the waveguide screw member is sleeved with a locking nut that passes through the filter housing power output harness and is positioned on the internal housing of the air conditioner. A locking balance washer is provided on one side of the locking nut, which can effectively fix the signal filter on the housing inside the air conditioner to increase firmness.

[0010] Preferably, both ends of the side positioning guard plate on the filter housing extend to the outside of both sides of the filter housing, and positioning locking rods are evenly provided on both sides of the extended ends of the side positioning guard plate, so that the signal filter can be fitted on the internal housing of the air conditioner for positioning to avoid swinging during vibration.

[0011] Preferably, buffer rubber blocks are evenly arranged on one side of the filter housing, and one side of the buffer rubber blocks is fixed to one side of the outer guard plate to avoid collision and friction between the air conditioner housing and the signal filter.

[0012] Preferably, a supporting top rod for supporting the buffer rubber block to prevent deformation is embedded inside the buffer rubber block, so that the combination of the buffer rubber block and the supporting top rod can play a buffering and anti-collision protection effect on the signal filter.

[0013] Preferably, the outer cover of the filter housing is connected to a protective shell, and an elastic frame with through holes is provided between the inside of the protective shell and the outer surface of the filter housing, which further improves the overall protection of the signal filter and does not affect the heat dissipation of the signal filter.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows: the variable frequency air-conditioning signal filter, through the side positioning guard plate on one side of the filter shell, and the positioning locking rods evenly arranged on both sides of the side positioning guard plate, allows the power output wiring harness on the filter shell to be inserted into the shielding shell inside the air conditioner by using the waveguide screw part, and then the locking nut is rotated and locked from one end of the inner side of the shielding shell, so that the filter shell can be firmly fixed on the shielding shell, and at the same time, the power output wiring harness can be protected inside the waveguide screw part, reducing the phenomenon of pulling and damaging the power output wiring harness caused by the vibration of the filter shell, and the filter shell is attached to the shielding shell inside the air conditioner through the side positioning guard plate and locked by the positioning locking rod, so that the filter is firmly positioned on the surface of the shielding shell in the air conditioner, avoiding the problem of unstable swinging of the filter shell caused by vibration, and further improving the firmness and stability of the variable frequency air-conditioning signal filter after installation.

[0015] The protective shell is connected to the filter housing through an elastic frame cover with mesh piles, and the external buffer rubber block, supporting top rod and outer guard plate of the protective shell cooperate with each other. After installation, the variable frequency air conditioner signal filter can obtain all-round buffering and shock-resistant effects when subjected to impact and vibration under the action of the elastic frame and the protective shell, and can reduce the friction between the variable frequency air conditioner signal filter and the air conditioner shell during vibration. At the same time, the buffer rubber, supporting top rod and outer guard plate can be used to prevent the variable frequency air conditioner signal filter from being damaged by the impact of external force, thereby extending the service life of the variable frequency air conditioner signal filter in the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the variable frequency air conditioner signal filter of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the variable frequency air conditioner signal filter of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the installation structure of the variable frequency air conditioner signal filter of the utility model.

[0019] In the figure: 1. filter housing; 2. side positioning guard plate; 3. waveguide screw member; 4. shielding gasket; 5. outer guard plate; 6. wiring sheath tube; 7. locking nut; 8. locking balance washer; 9. positioning locking rod; 10. buffer rubber block; 11. support top rod; 12. protective shell; 13. elastic frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a variable frequency air conditioner signal filter, comprising:

[0022] A filter housing 1, wherein one side of the filter housing 1 is provided with a side positioning guard plate 2 for positioning the filter housing 1 on the inner housing of the air conditioner, so that the variable frequency air conditioner signal filter is installed on the inner shielding guard plate of the air conditioner through the side positioning guard plate 2 to maintain a vertically fitted state, and plays a role in positioning and fixing the variable frequency air conditioner signal filter to avoid unstable swinging. A waveguide screw member 3 for wrapping and protecting the power outlet terminal is sleeved on the power output wiring harness of the filter housing 1, so that the power output wiring harness of the variable frequency air conditioner signal filter can pass through the inside of the waveguide screw member 3 to obtain an effective protection effect, and avoid the phenomenon of pulling and damage caused by the swing of the variable frequency air conditioner signal filter. Two shielding pads 4 for installation on the inner and outer surfaces of the inner housing of the air conditioner are sleeved on the waveguide screw member 3, so that the variable frequency air conditioner signal filter can shield the air conditioner communication signal frequency through the shielding pad 4 to ensure the normal operation of the air conditioner;

[0023] An outer guard plate 5 is arranged on the other side of the filter housing 1 and is used to provide anti-collision protection for the outer side of the filter housing 1. The vibration generated by the air conditioner during operation can be protected by the outer guard plate 5 to reduce the friction and collision between the housing and the variable frequency air conditioner signal filter. The power input harness of the filter housing 1 is sleeved with a wiring sheath tube 6 fixed to the bottom of the filter housing 1, which is used to protect the input power harness from entering the interior of the wiring sheath tube 6 to avoid friction damage between the filter housing 1.

[0024] The external thread of the waveguide screw member 3 is sleeved with a locking nut 7 that penetrates the power output harness of the filter housing 1 and is positioned on the internal housing of the air conditioner, so that the power output harness of the variable frequency air conditioner signal filter is fixed on the surface of the shielding shell in the air conditioner, so that the power output harness is effectively fixed. A locking balance washer 8 is provided on one side of the locking nut 7, so that the locking balancing washer 8 can be used to avoid the locking tilt when the locking nut 7 is locked on the waveguide screw member 3. The two ends of the side positioning guard plate 2 on the filter housing 1 extend to the outside of both sides of the filter housing 1, and positioning locking rods 9 are evenly provided on both sides of the extended end of the side positioning guard plate 2, which are used to position the variable frequency air conditioner signal filter on the shielding shell in the air conditioner to avoid swinging.

[0025] Buffer rubber blocks 10 are evenly arranged on one side of the filter housing 1, so that when the variable frequency air conditioner signal filter is subjected to external force, the buffer rubber blocks 10 can be used to alleviate the force, thereby reducing the damage caused by the housing to the variable frequency air conditioner signal filter. One side of the buffer rubber block 10 is fixed to one side of the outer guard plate 5, and a supporting top rod 11 for supporting the buffer rubber block 10 to prevent deformation is embedded in the interior of the buffer rubber block 10, thereby strengthening the support of the supporting top rod 11 for the buffer rubber block 10 and avoiding damage caused by extrusion. The external cover of the filter housing 1 is connected to a protective shell 12, and an elastic frame 13 with a through hole is provided between the inside of the protective shell 12 and the outer surface of the filter housing 1 to strengthen the protection of the variable frequency air conditioner signal filter.

[0026] Specifically, when in use, firstly, the waveguide screw member 3 is connected to the power output wiring harness of the variable frequency air conditioner signal filter and fixed to one side of the filter housing 1, and at the same time, one of the shielding pads 4 is sleeved on the waveguide screw member 3, so that the variable frequency air conditioner signal filter uses the waveguide screw member 3 to penetrate into the shielding shell in the air conditioner, and then another shielding pad 4 is sleeved on the waveguide screw member 3 at one end inside the shielding shell, and the locking nut 7 is threadedly locked on the waveguide screw member 3, and pressed against the inner side wall of the shielding shell, so that the two shielding pads 4 are locked and fit on the inner and outer walls of the shielding shell, so that the variable frequency air conditioner signal filter can be locked and fixed, and the variable frequency air conditioner signal filter can avoid the communication signal with the air conditioner, thereby ensuring the normal operation of the air conditioner and the variable frequency air conditioner signal filter. During operation, the side positioning guard plate 2 is pressed onto the surface of the shielding shell, and is locked to the surface of the shielding shell by using the positioning locking rod 9, so that the variable frequency air-conditioning signal filter is further fixed to avoid vibration that causes the filter housing 1 to swing unstably, thereby further improving the firmness and stability of the variable frequency air-conditioning signal filter after installation. Then, the protective shell 12 is connected to the filter housing 1 by using an elastic frame 13 with a mesh for protection, and the normal working and heat dissipation of the variable frequency air-conditioning signal filter is not affected. At the same time, the buffer rubber block 10, the supporting top rod 11 and the outer guard plate 5 can prevent the variable frequency air-conditioning signal filter from being damaged by external force, thereby enhancing the service life of the variable frequency air-conditioning signal filter in the air conditioner.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A variable frequency air conditioner signal filter, characterized in that: include: A filter housing (1), wherein one side of the filter housing (1) is provided with a side positioning guard plate (2) for positioning the filter housing (1) on an internal housing of an air conditioner, a waveguide screw member (3) for wrapping and protecting a power outlet terminal is sleeved on a power output wiring harness of the filter housing (1), and two shielding gaskets (4) for installation on both inner and outer surfaces of the internal housing of the air conditioner are sleeved on the waveguide screw member (3); An outer protective plate (5) is arranged on the other side of the filter housing (1) and is used to provide anti-collision protection for the outer side of the filter housing (1); a wiring sheath tube (6) fixed to the bottom of the filter housing (1) is sleeved on the power input wiring harness of the filter housing (1).

2. The variable frequency air conditioner signal filter according to claim 1, characterized in that: The external thread of the waveguide screw member (3) is sleeved with a locking nut (7) for positioning the power output harness of the filter housing (1) through the internal housing of the air conditioner, and a locking balancing washer (8) is provided on one side of the locking nut (7).

3. The variable frequency air conditioner signal filter according to claim 1, characterized in that: Both ends of the side positioning guard plate (2) on the filter housing (1) extend to the outside of both sides of the filter housing (1), and positioning locking rods (9) are evenly provided on both sides of the extended ends of the side positioning guard plate (2).

4. The variable frequency air conditioner signal filter according to claim 1, characterized in that: Buffer rubber blocks (10) are evenly arranged on one side of the filter housing (1), and one side of the buffer rubber blocks (10) is fixed to one side of the outer protective plate (5).

5. The variable frequency air conditioner signal filter according to claim 4, characterized in that: A supporting top rod (11) for supporting the buffer rubber block (10) and preventing deformation is embedded in the buffer rubber block (10).

6. The variable frequency air conditioner signal filter according to claim 1, characterized in that: The outer cover of the filter housing (1) is connected to a protective shell (12), and an elastic frame (13) with through holes is provided between the inside of the protective shell (12) and the outer surface of the filter housing (1).

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