An air conditioner drain pump

Abstract

The present invention provides an air conditioner drainage pump, which solves the problem of the loose structure of the existing drainage pump. The air conditioner drainage pump includes a drainage pump main body and a liquid level sensor. The drainage pump main body includes a long strip-shaped housing and a circuit board arranged inside the housing. The liquid level sensor is electrically connected to the circuit board. A notch is formed on the lower side of the front end of the housing. The notch includes a top wall and a side wall. The water inlet hole of the drainage pump main body is arranged on the side wall of the notch. A water storage bucket is detachably fixed in the notch. The top wall of the notch covers the bucket mouth of the water storage bucket. An exhaust hole for communicating the water storage bucket with the outside is opened on the top wall of the notch. A water inlet hole and a drainage hole are arranged on the side wall of the water storage bucket. The drainage hole communicates with the water inlet hole. The top wall of the notch extends into the water storage bucket to form a vertically arranged pipe body. The liquid level sensor is used to measure the water level in the water storage bucket. At least part of the components constituting the liquid level sensor are in the inner cavity of the pipe body. The air conditioner drainage pump has a compact structure.

Description

Technical Field

[0001] The present invention relates to a drainage pump, in particular to an air conditioner drainage pump. Background Art

[0002] Air conditioner drainage pumps are mainly used to drain the condensed water generated during the operation of air conditioners, and are commonly found in equipment such as central air conditioners, air duct machines, and wall-mounted units. Their core function is to pump accumulated water into the drainage pipe automatically or manually to avoid machine failures or water leakage problems caused by the accumulation of condensed water.

[0003] Existing air conditioner drainage pumps, such as the split ultra-quiet air conditioner drainage pump (application number: 201420520850.X) proposed by the applicant before, include a pump housing and a control circuit board provided in the pump housing. A pump housing water inlet and a pump housing water outlet are provided on the pump housing. A DC diaphragm pump is provided in the pump housing. The DC diaphragm pump is electrically connected to an external power supply through a DC conversion power supply and a control circuit board. The inlet and outlet of the DC diaphragm pump are correspondingly connected to the pump housing water inlet and the pump housing water outlet. The outer end of the pump housing water inlet is connected to a water kettle through an external water pipe. A liquid level sensor is provided in the water kettle. The liquid level sensor is electrically connected to the control circuit board through a signal wire.

[0004] In the above drainage pump, the DC diaphragm pump is connected to the water kettle through an external water pipe, resulting in a relatively loose overall structure and a large occupied space. Summary of the Invention

[0005] The object of the present invention is to address the above problems existing in the prior art and propose an air conditioner drainage pump with a compact structure.

[0006] The object of the present invention can be achieved by the following technical solutions: An air conditioner drainage pump includes a drainage pump main body and a liquid level sensor. The drainage pump main body includes a strip-shaped outer shell and a circuit board provided in the outer shell. The liquid level sensor is electrically connected to the circuit board. The feature is that a notch is formed on the lower side of the front end of the outer shell. The notch includes a top wall and a side wall, and the water inlet hole of the drainage pump main body is provided on the side wall of the notch. A water storage kettle is detachably fixed in the notch. The top wall of the notch covers the mouth of the water storage kettle, and an exhaust hole for connecting the water storage kettle to the outside is opened on the top wall of the notch. An inlet hole and a drainage hole are provided on the side wall of the water storage kettle, and the drainage hole is connected to the above-mentioned water inlet hole. The top wall of the notch extends into the water storage kettle to form a vertically arranged pipe body, and the inner cavities of the pipe body and the outer shell are connected. The liquid level sensor is used to measure the water level in the water storage kettle, and at least some components constituting the liquid level sensor are in the inner cavity of the pipe body.

[0007] During use, the air conditioner water enters the water storage kettle through the inlet hole. When the liquid level sensor measures that the water level in the water storage kettle reaches the upper limit, the drainage pump main body starts and pumps the water in the water storage kettle out through the water inlet hole.

[0008] A notch is formed on the lower front end of the shell to accommodate the water tank, which can effectively shorten the distance between the water tank and the drainage pump body, making the overall structure more compact and reducing space occupancy, and combine the water tank and the drainage pump body into a whole, simplifying the structure while making it easier for customers to install, use and carry.

[0009] In the above-mentioned air conditioning drainage pump, a water inlet pipe is horizontally fixed on the above-mentioned notched side wall, and the inner hole of the water inlet pipe is the above-mentioned water inlet hole; a drainage pipe is correspondingly fixed on the water storage pot, and the inner hole of the drainage pipe is the above-mentioned drainage hole; the front axis of the water inlet pipe and the rear axis of the drainage pipe both extend forward and backward, the front end of the water inlet pipe is inserted into the rear end of the drainage pipe and a seal is formed between the side walls of the two. The water inlet hole and the drainage hole are directly connected by their own structure, and the connection between the two is between the water storage pot and the outer shell, which simplifies the structure and makes the drainage pump structure more compact.

[0010] In the above-mentioned air conditioning drainage pump, the drainage pipe is made of rubber material, and the outer wall of the water inlet pipe is in close contact with the inner wall of the rear end of the drainage pipe to form a seal. An elastic seal is formed between the drainage pipe and the water inlet pipe, which can eliminate the influence of the working vibration of the drainage pump body on the connection and avoid water leakage.

[0011] In the above-mentioned air conditioning drainage pump, the axis of the water inlet hole extends forward and backward, the drainage hole is L-shaped, and the front end of the drainage hole is set downward. The above-mentioned design can not only lower the position of the front end of the drainage hole, but also reduce the fluctuation of the liquid level, ensuring the stable operation of the drainage pump body.

[0012] In the above-mentioned air conditioning drainage pump, a rubber ring is horizontally fixed on the top wall of the notch, the axes of the rubber ring and the water storage pot are arranged parallel, and the top surface of the water storage pot is pressed against the rubber ring to form a strong seal to stably seal the edge of the water storage pot mouth.

[0013] In the above-mentioned air-conditioning drainage pump, a positioning groove is horizontally opened on the side wall of the notch, and a positioning block matching the positioning groove is formed on the rear side wall of the water storage pot. The positioning block is inserted into the positioning groove and supported upward; the front side wall of the water storage pot is connected to the outer shell through a snap structure, so that after removing the snap structure, the water storage pot can be moved forward and downward to be taken out for cleaning, which is convenient for subsequent disassembly and maintenance.

[0014] In the above-mentioned air-conditioning drainage pump, the buckle structure includes an elastic buckle and a block formed on the front end surface of the shell, the buckle includes a main body that matches the block and is in a U-shape, and the main body is buckled on the upper side of the block, so that the water storage pot can be released from the positioning by prying the buckle, further facilitating the disassembly and assembly of the water storage pot.

[0015] In the above-mentioned air conditioning drainage pump, the type of liquid level sensor is a non-contact liquid level sensor, and the liquid level sensor is completely located in the inner cavity of the tube body, so that there are no electronic components in the water storage pot, which further facilitates the disassembly and assembly of the water storage pot.

[0016] In the above-mentioned air-conditioning drainage pump, the side wall of the upper end of the water storage kettle near the top surface of the water storage kettle is an annular step. The edge of the top wall of the notch extends downward to form an opening ring portion matching the annular step. The opening ring portion is inserted into the annular step and pressed on the bottom surface of the annular step, and the inner side wall of the opening ring portion is in clearance fit with the side wall of the annular step. The opening ring portion is pressed against the bottom surface of the annular step to form a hard contact, thereby further restricting the upward movement of the water storage kettle and making the positioning of the water storage kettle more stable.

[0017] In the above-mentioned air-conditioning drainage pump, an exhaust pipe is vertically formed inside the housing. The inner hole of the exhaust pipe is the above-mentioned exhaust hole, and the upper end of the exhaust pipe extends to the outside of the housing. The setting of the exhaust pipe not only enables the air in the water storage kettle to be quickly discharged, but also in actual use, the upper end of the exhaust pipe can be connected to a drainage pipe to prevent water from overflowing to the outside.

[0018] Compared with the prior art, the present air-conditioning drainage pump has the following advantages:

[0019] 1. A notch for accommodating the water storage kettle is formed on the lower side of the front end of the housing. This can not only effectively shorten the distance between the water storage kettle and the main body of the drainage pump, making the overall structure more compact, reducing space occupation, but also combine the water storage kettle and the main body of the drainage pump into a whole, simplifying the structure while facilitating the installation, use and carrying by customers.

[0020] 2. The setting of the exhaust pipe not only enables the air in the water storage kettle to be quickly discharged, but also in actual use, the upper end of the exhaust pipe can be connected to a drainage pipe to prevent water from overflowing to the outside. Description of the Drawings

[0021] Figure 1 is a three-dimensional schematic diagram of the present air-conditioning drainage pump.

[0022] Figure 2 is a three-dimensional schematic diagram of the main body of the drainage pump.

[0023] Figure 3 is a cross-sectional schematic diagram of the present air-conditioning drainage pump.

[0024] Figure 4 is a schematic diagram of the structure where the water inlet hole is communicated with the water outlet hole.

[0025] Figure 5 is a three-dimensional schematic diagram of the water storage kettle.

[0026] In the figure, 1 is the main body of the drainage pump; 1a is the outer shell; 1b is the circuit board; 1c is the notch; 1d is the water inlet hole; 1e is the exhaust hole; 1f is the pipe body; 1g is the clamping block; 1h is the opening ring part; 1i is the exhaust pipe; 1j is the positioning groove; 2 is the liquid level sensor; 3 is the water storage kettle; 3a is the water inlet hole; 3b is the drainage hole; 3c is the positioning block; 3d is the buckle; 3e is the annular step; 3f is the card slot; 4 is the rubber ring; 5 is the water inlet pipe; 6 is the drainage pipe; 7 is the filter screen. Detailed implementation mode

[0027] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0028] As Figure 1 and Figure 3 shown, the air conditioner drainage pump of the present invention includes a drainage pump main body 1 and a liquid level sensor 2. Among them, the drainage pump main body 1 includes a strip-shaped outer shell 1a and a circuit board 1b arranged inside the outer shell 1a. During actual use, the drainage pump main body 1 is horizontally arranged, and the circuit board 1b is also horizontally arranged and located on the upper side of the outer shell 1a. The liquid level sensor 2 is electrically connected to the circuit board 1b, and this connection method is existing and will not be elaborated here.

[0029] Specifically,

[0030] As Figure 1 , Figure 2 and Figure 4 shown, a notch 1c is formed on the lower side of the front end of the outer shell 1a, and the notch 1c is not communicated with the inner cavity of the outer shell 1a. The notch 1c includes a top wall and a side wall, and preferably the side wall and the top wall of the notch 1c are vertically arranged. The water inlet hole 1d of the drainage pump main body 1 is arranged on the side wall of the notch 1c, and a water storage kettle 3 is detachably fixed in the notch 1c, and the mouth of the water storage kettle 3 is arranged upward. The top wall of the notch 1c covers the mouth of the water storage kettle 3, and an exhaust hole 1e for communicating the water storage kettle 3 with the outside is opened on the top wall of the notch 1c. Further explanation, a rubber ring 4 is horizontally fixed on the top wall of the notch 1c, the axis of the rubber ring 4 and the water storage kettle 3 are parallel, and the top surface of the water storage kettle 3 is pressed against the rubber ring 4 to form a strong seal, stably sealing the edge of the mouth of the water storage kettle 3.

[0031] As Figure 3 and Figure 4 shown, a water inlet hole 3a and a drainage hole 3b are provided on the side wall of the water storage kettle 3, and the drainage hole 3b is communicated with the above-mentioned water inlet hole 1d. The top wall of the notch 1c extends into the water storage kettle 3 to form a vertically arranged pipe body 1f, the inner cavities of the pipe body 1f and the outer shell 1a are communicated, but the pipe body 1f and the water storage kettle 3 are not communicated; the liquid level sensor 2 is used to measure the water level in the water storage kettle 3, and at least part of the components constituting the liquid level sensor 2 are in the inner cavity of the pipe body 1f.

[0032] During use, the air-conditioning water enters the water storage kettle 3 through the water inlet hole 3a. When the liquid level sensor 2 measures that the water level in the water storage kettle 3 reaches the upper limit, the drainage pump main body 1 starts and pumps out the water in the water storage kettle 3 through the water inlet hole 1d.

[0033] A notch 1c for accommodating the water storage kettle 3 is formed on the lower side of the front end of the outer shell 1a. This can effectively shorten the distance between the water storage kettle 3 and the drainage pump main body 1, making the overall structure more compact, reducing space occupation, and at the same time combining the water storage kettle 3 and the drainage pump main body 1 into a whole, simplifying the structure while facilitating the customer to use and carry.

[0034] Among them,

[0035] As Figure 4 shown, the connection method of the water inlet hole 1d and the drainage hole 3b is as follows: A water inlet pipe 5 is horizontally fixed on the side wall of the notch 1c, and the inner hole of the water inlet pipe 5 is the above-mentioned water inlet hole 1d. A drainage pipe 6 is correspondingly fixed on the water storage kettle 3, and the inner hole of the drainage pipe 6 is the above-mentioned drainage hole 3b. The front end axis of the water inlet pipe 5 and the rear end axis of the drainage pipe 6 both extend forward and backward. The front end of the water inlet pipe 5 is inserted into the rear end of the drainage pipe 6 and a seal is formed between their side walls. The water inlet hole 1d and the drainage hole 3b are directly connected by their own structures, and their connection is between the water storage kettle 3 and the outer shell 1a, simplifying the structure while making the drainage pump structure more compact.

[0036] Further explanation: The drainage pipe 6 is made of rubber material, and the outer side wall of the water inlet pipe 5 is in close contact with the inner wall of the rear end of the drainage pipe 6 to form a seal. An elastic seal is formed between the drainage pipe 6 and the water inlet pipe 5, which can eliminate the influence of the working vibration of the drainage pump main body 1 on the connection part and avoid water leakage. In this embodiment, the installation method of the drainage pipe 6 is as follows: There is a through hole in the front and rear directions on the rear side wall of the water storage kettle 3. An annular groove matching the installation hole is opened on the outer wall of the rear end of the drainage pipe 6, and the edge of the installation hole is clamped in the annular groove to stably connect the drainage pipe 6 and the water storage kettle 3 together.

[0037] Furthermore, the water inlet hole 3a is arranged on the front side wall of the water storage kettle 3, and the axis of the water inlet hole 3a extends forward and backward. The drainage hole 3b is L-shaped, and the front port of the drainage hole 3b is arranged downward. This can not only reduce the position of the front port of the drainage hole 3b, but also reduce the liquid level fluctuation to ensure the stable operation of the drainage pump main body 1.

[0038] As Figure 2 and Figure 5As shown, the water storage pot 3 is installed as follows: a positioning groove 1j is horizontally opened on the side wall of the notch 1c, and a positioning block 3c matching the positioning groove 1j is formed on the rear side wall of the water storage pot 3. The positioning block 3c is inserted into the positioning groove 1j and supported upward. Preferably, there are two positioning blocks 3c and they are arranged side by side on the left and right. The number of positioning grooves 1j and positioning blocks 3c is the same and the positions correspond one to one. The front side wall of the water storage pot 3 is connected to the housing 1a through a buckle structure, so that after removing the buckle structure, the water storage pot 3 can be taken out for cleaning by moving it forward and downward, which is convenient for subsequent disassembly and maintenance.

[0039] The buckle structure includes an elastic buckle 3d and a block 1g formed on the front end surface of the housing 1a. The buckle 3d includes a main body that matches the block 1g and is in a U-shape, and the main body is buckled on the upper side of the block 1g, so that the water storage pot 3 can be released from the position by bending the buckle 3d, which further facilitates the disassembly and assembly of the water storage pot 3. In actual products, the buckle 3d and the water storage pot 3 are an integrated structure, and preferably both are plastic integrated parts. Naturally, the buckle 3d structure can also adopt other well-known technologies, and is not limited to the solution given in this application.

[0040] Further explanation: the side wall of the upper end of the water storage pot 3 near the top surface of the water storage pot 3 is an annular step 3e, and the edge of the top wall of the notch 1c extends downward to form an open ring portion 1h matching the annular step 3e, the open ring portion 1h is inserted into the annular step 3e and pressed on the bottom surface of the annular step 3e, and the inner side wall of the open ring portion 1h is gap-matched with the side wall of the annular step 3e. The open ring portion 1h presses against the bottom surface of the annular step 3e to form a hard contact, thereby further limiting the upward movement of the water storage pot 3 and making the positioning of the water storage pot 3 more stable.

[0041] The liquid level sensor 2 is a non-contact liquid level sensor, and the liquid level sensor 2 is completely in the inner cavity of the tube body 1f, so that there are no electronic components in the water storage pot 3, so as to further facilitate the disassembly and assembly of the water storage pot 3. Preferably, the non-contact liquid level sensor 2 is a capacitive non-contact liquid level sensor. Naturally, the liquid level sensor 2 can also adopt a Hall liquid level sensor 2, which has been disclosed in the air conditioning drain pump kettle assembly (application number: 202020135619.4) previously proposed by the applicant.

[0042] like Figure 1 As shown, in this embodiment, an exhaust pipe 1i is vertically formed in the shell 1a, the inner hole of the exhaust pipe 1i is the exhaust hole 1e mentioned above, and the lower end of the exhaust pipe 1i extends to the top wall of the notch 1c. The upper end of the exhaust pipe 1i extends to the outside of the shell 1a. The setting of the exhaust pipe 1i not only allows the air in the water storage pot 3 to be quickly discharged, but also the upper end of the exhaust pipe 1i can be connected to the drain pipe 6 in actual use to prevent water from overflowing to the outside.

[0043] In the actual product, a filter net 7 is also vertically fixed in the water storage kettle 3. The filter net 7 is disposed opposite to and close to the water inlet hole 3a to filter out impurities in the water flowing in from the water inlet hole 3a. In this embodiment, a card slot 3f matching the filter net 7 is formed on the inner wall of the water storage kettle 3, and the filter net 7 is clamped and positioned in the card slot 3f.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An air conditioning drainage pump, comprising a drainage pump body (1) and a liquid level sensor (2), wherein the drainage pump body (1) comprises a long strip-shaped housing (1a) and a circuit board (1b) arranged in the housing (1a), and the liquid level sensor (2) is electrically connected to the circuit board (1b), characterized in that: A notch (1c) is formed at the lower side of the front end of the housing (1a), the notch (1c) comprising a top wall and a side wall, and a water inlet hole (1d) of the drainage pump body (1) is arranged on the side wall of the notch (1c); a water storage pot (3) is detachably fixed in the notch (1c), the top wall of the notch (1c) covers the mouth of the water storage pot (3), and an exhaust hole (1e) is provided on the top wall of the notch (1c) to connect the water storage pot (3) to the outside; a water inlet hole is provided on the side wall of the water storage pot (3) (3a) and a drainage hole (3b), and the drainage hole (3b) is connected to the water inlet hole (1d); the top wall of the notch (1c) extends into the water storage pot (3) to form a vertically arranged tube body (1f), and the inner cavities of the tube body (1f) and the outer shell (1a) are connected; the liquid level sensor (2) is used to measure the water level in the water storage pot (3), and at least part of the components constituting the liquid level sensor (2) are in the inner cavity of the tube body (1f); the side wall of the notch (1c) A water inlet pipe (5) is fixed horizontally on the upper part, and the inner hole of the water inlet pipe (5) is the water inlet hole (1d) mentioned above; a drainage pipe (6) is correspondingly fixed on the water storage pot (3), and the inner hole of the drainage pipe (6) is the drainage hole (3b) mentioned above; the front axis of the water inlet pipe (5) and the rear axis of the drainage pipe (6) both extend forward and backward, the front end of the water inlet pipe (5) is inserted into the rear end of the drainage pipe (6), and a seal is formed between the side walls of the two; a rubber ring (4) is fixed horizontally on the top wall of the notch (1c), the axes of the rubber ring (4) and the water storage pot (3) are arranged parallel, and the top surface of the water storage pot (3) is pressed against the rubber ring (4); a positioning groove (1j) is horizontally opened on the side wall of the notch (1c), and a positioning block (3c) matching the positioning groove (1j) is formed on the rear side wall of the water storage pot (3), and the positioning block (3c) is inserted into the positioning groove (1j) and supported upward; the front side wall of the water storage pot (3) is connected to the outer shell (1a) through a snap-fit ​​structure.

2. An air conditioning drainage pump according to claim 1, characterized in that: The drainage pipe (6) is made of rubber material, and the outer wall of the water inlet pipe (5) is in close contact with the inner wall of the rear end of the drainage pipe (6) to form a seal.

3. An air conditioning drainage pump according to claim 1 or 2, characterized in that: The axis of the water inlet hole (3a) extends forward and backward, the drainage hole (3b) is L-shaped, and the front end of the drainage hole (3b) is arranged downward.

4. The air conditioning drainage pump according to claim 1, characterized in that: The buckle structure comprises an elastic buckle (3d) and a clamping block (1g) formed on the front end surface of the housing (1a); the buckle (3d) comprises a main body that matches the clamping block (1g) and is in a U-shape, and the main body is buckled onto the upper side of the clamping block (1g).

5. The air conditioning drainage pump according to claim 1, characterized in that: The type of the liquid level sensor (2) is a non-contact liquid level sensor, and the liquid level sensor (2) is completely located in the inner cavity of the tube body (1f).

6. The air conditioning drainage pump according to claim 1, characterized in that: The side wall of the upper end of the water storage pot (3) near the top surface of the water storage pot (3) is an annular step (3e), and the edge of the top wall of the notch (1c) extends downward to form an open ring portion (1h) matching the annular step (3e), the open ring portion (1h) is inserted into the annular step (3e) and pressed on the bottom surface of the annular step (3e), and the inner side wall of the open ring portion (1h) is gap-matched with the side wall of the annular step (3e).

7. An air conditioning drainage pump according to claim 1, characterized in that: An exhaust pipe (1i) is vertically formed inside the outer shell (1a), the inner hole of the exhaust pipe (1i) is the above-mentioned exhaust hole (1e), and the upper end of the exhaust pipe (1i) extends to the outside of the outer shell (1a).

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