Air conditioner drainage pump

Abstract

The invention provides an air conditioner draining pump which solves the problem that an existing draining pump is loose in structure. The air conditioner drainage pump comprises a drainage pump body and a liquid level sensor, the drainage pump body comprises a long-strip-shaped shell and a circuit board arranged in the shell, the liquid level sensor is electrically connected with the circuit board, a notch is formed in the lower side of the front end of the shell and comprises a top wall and a side wall, and a drainage pump body water inlet hole is formed in the side wall of the notch; a water storage barrel is detachably fixed in the notch, the top wall of the notch covers a barrel opening of the water storage barrel, and an exhaust hole enabling the water storage barrel to be communicated with the outside is formed in the top wall of the notch. A water inlet hole and a water outlet hole are formed in the side wall of the water storage barrel, and the water outlet hole communicates with the water inlet hole; the top wall of the notch extends into the water storage barrel to form a vertically-arranged pipe body, the liquid level sensor is used for measuring the water level in the water storage barrel, and at least part of components forming the liquid level sensor are arranged in an inner cavity of the pipe body. The air conditioner draining pump is compact in structure.

Description

Technical Field

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

[0002] Air conditioning drainage pumps are mainly used to discharge condensed water generated during the operation of air conditioning, and are commonly found in central air conditioners, duct units, wall mounted units and other equipment. Its core function is to automatically or manually pump the accumulated water to the drainage pipe to avoid machine failure or water leakage caused by the accumulation of condensed water.

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

[0004] In the above-mentioned drainage pump, the DC diaphragm pump is connected to the kettle through an external water pipe, which makes the overall structure loose and occupies a large space. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems in the prior art and to provide an air conditioning drainage pump with a compact structure.

[0006] The objective of the present invention can be achieved through the following technical solutions: an air conditioning drainage pump, comprising a drainage pump body and a liquid level sensor, the drainage pump body comprising an elongated outer shell and a circuit board arranged in the outer shell, the liquid level sensor being electrically connected to the circuit board, and characterized in that a notch is formed on the lower side of the front end of the outer shell, the notch comprising a top wall and a side wall, and the water inlet of the drainage pump body is arranged on the side wall of the notch; a water storage pot is detachably fixed in the notch, the top wall of the notch covers the mouth of the water storage pot, and an exhaust hole is provided on the top wall of the notch to connect the water storage pot to the outside; a water inlet hole and a drainage hole are provided on the side wall of the water storage pot, and the drainage hole is connected to the above-mentioned water inlet hole; the top wall of the notch extends into the water storage pot to form a vertically arranged tube body, and the inner cavities of the tube body and the outer shell are connected; the liquid level sensor is used to measure the water level in the water storage pot, and at least part of the components constituting the liquid level sensor are in the inner cavity of the tube body.

[0007] When in use, air conditioning water enters the water storage pot through the water inlet hole. When the liquid level sensor measures that the water level in the water storage pot has reached the upper limit, the drainage pump body starts and pumps the water in the water storage pot 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 located 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 pot near the top surface of the water storage pot is an annular step, and the edge of the notched top wall extends downward to form an open ring portion matching the annular step, the open 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 open ring portion and the side wall of the annular step are gap-matched. The open ring portion presses against the bottom surface of the annular step to form a hard contact, thereby further limiting the upward movement of the water storage pot and making the positioning of the water storage pot more stable.

[0017] In the above-mentioned air conditioning drainage pump, an exhaust pipe is vertically formed in the shell, 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 shell. The provision of the exhaust pipe not only allows the air in the water storage pot to be quickly discharged, but also the upper end of the exhaust pipe can be connected to a drain pipe in actual use to prevent water from overflowing to the outside.

[0018] Compared with the prior art, this air conditioning drainage pump has the following advantages: 1. A notch is formed on the lower front side of the shell to accommodate the water storage pot. This can effectively shorten the distance between the water storage pot and the drainage pump body, making the overall structure more compact and reducing space occupancy, and combine the water storage pot and the drainage pump body into a whole. While simplifying the structure, it is also convenient for customers to install, use and carry.

[0019] 2. The setting of the exhaust pipe not only allows the air in the water storage kettle to be discharged quickly, but also the upper end of the exhaust pipe can be connected to a drain pipe during actual use to prevent water from overflowing to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the air conditioner drainage pump.

[0021] Figure 2 It is a three-dimensional schematic diagram of the drainage pump body.

[0022] Figure 3 It is a cross-sectional schematic diagram of the air conditioner drainage pump.

[0023] Figure 4 It is a structural schematic diagram in which the water inlet hole is connected to the drain hole.

[0024] Figure 5 It is a three-dimensional schematic diagram of a water storage kettle.

[0025] In the figure, 1, drainage pump body; 1a, shell; 1b, circuit board; 1c, notch; 1d, water inlet hole; 1e, exhaust hole; 1f, tube body; 1g, clamping block; 1h, open ring; 1i, exhaust pipe; 1j, positioning groove; 2, liquid level sensor; 3, water storage pot; 3a, water inlet hole; 3b, drainage hole; 3c, positioning block; 3d, buckle; 3e, annular step; 3f, clamping groove; 4, rubber ring; 5, water inlet pipe; 6, drainage pipe; 7, filter net. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1 and Figure 3 As shown, the air conditioning drain pump includes a drain pump body 1 and a liquid level sensor 2. The drain pump body 1 includes a long strip-shaped housing 1a and a circuit board 1b disposed in the housing 1a. In actual use, the drain pump body 1 is horizontally disposed, and the circuit board 1b is also horizontally disposed and located on the upper side of the housing 1a. The liquid level sensor 2 is electrically connected to the circuit board 1b, and this connection method is existing and will not be described in detail here.

[0028] Specifically, like Figure 1 , Figure 2 and Figure 4 As shown, a notch 1c is formed on the lower side of the front end of the shell 1a, and the notch 1c is not connected to the inner cavity of the shell 1a. The notch 1c includes a top wall and a side wall, and preferably the side wall of the notch 1c and the top wall of the notch 1c are vertically arranged. The water inlet 1d of the drainage pump body 1 is arranged on the side wall of the notch 1c, and a water storage pot 3 is detachably fixed in the notch 1c, and the mouth of the water storage pot 3 is arranged upward. 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. Further explanation, a rubber ring 4 is horizontally fixed on the top wall of the notch 1c, and 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 to form a strong seal to stably seal the edge of the mouth of the water storage pot 3.

[0029] like Figure 3 and Figure 4 As shown, a water inlet hole 3a and a drain hole 3b are provided on the side wall of the water storage pot 3, and the drain 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 shell 1a are connected, but the tube body 1f and the water storage pot 3 are not 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.

[0030] When in use, air-conditioning water enters the water storage pot 3 through the water inlet hole 3a. When the liquid level sensor 2 measures that the water level in the water storage pot 3 reaches the upper limit, the drainage pump body 1 starts and pumps the water in the water storage pot 3 out through the water inlet hole 1d.

[0031] A notch 1c is formed on the lower front end of the shell 1a to accommodate the water pot 3. This can effectively shorten the distance between the water pot 3 and the drainage pump body 1, making the overall structure more compact and reducing space occupancy, and combine the water pot 3 and the drainage pump body 1 into a whole, which simplifies the structure and is convenient for customers to use and carry.

[0032] in, like Figure 4 As 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 pot 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 the side walls of the two. The water inlet hole 1d and the drainage hole 3b are directly connected by their own structure, and the connection between the two is located between the water storage pot 3 and the outer shell 1a, which simplifies the structure and makes the drainage pump structure more compact.

[0033] Further explanation, the drain 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 drain pipe 6 to form a seal. An elastic seal is formed between the drain pipe 6 and the water inlet pipe 5, which can eliminate the influence of the working vibration of the drainage pump body 1 on the connection and avoid water leakage. In this embodiment, the installation method of the drain pipe 6 is as follows: a mounting port is penetrated through the rear side wall of the water storage pot 3 from front to back, and an annular groove matching the mounting port is opened on the outer wall of the rear end of the drain pipe 6, and the edge of the mounting port is clamped in the annular groove to stably connect the drain pipe 6 and the water storage pot 3 together.

[0034] Furthermore, the water inlet 3a is arranged on the front side wall of the water storage pot 3, and the axis of the water inlet 3a extends forward and backward. The drainage hole 3b is L-shaped, and the front end of the drainage hole 3b is arranged downward, which can not only lower the position of the front end of the drainage hole 3b, but also reduce the fluctuation of the liquid level, thereby ensuring the stable operation of the drainage pump body 1.

[0035] like 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In the actual product, a filter screen 7 is vertically fixed in the water storage pot 3, and the filter screen 7 is arranged opposite to and close to the water inlet 3a to filter out impurities in the water flowing in from the water inlet 3a. In this embodiment, a slot 3f matching the filter screen 7 is provided on the inner wall of the water storage pot 3, and the filter screen 7 is clamped and positioned in the slot 3f.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they 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 the 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 (3a) and a drainage hole (3b) are provided on the side wall of the water storage pot (3), 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 housing (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).

2. An air conditioning drainage pump according to claim 1, characterized in that: 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 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 end axis of the water inlet pipe (5) and the rear end axis of the drainage pipe (6) both extend forward and backward, and 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.

3. An air conditioning drainage pump according to claim 2, 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.

4. An air conditioning drainage pump according to claim 2 or 3, 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.

5. The air conditioning drainage pump according to claim 1, characterized in that: A rubber ring (4) is horizontally fixed 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 tightly against the rubber ring (4).

6. An air conditioning drainage pump according to claim 5, characterized in that: A positioning groove (1j) is horizontally formed on the side wall of the notch (1c); 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; and the front side wall of the water storage pot (3) is connected to the housing (1a) via a snap-fit ​​structure.

7. An air conditioning drainage pump according to claim 6, 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).

8. 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).

9. An air conditioning drainage pump according to claim 6 or 7, 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).

10. The 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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