Control box and refrigerated cabinet for beverage making

Abstract

The control box comprises a control box body and an inflation valve, the control box body is provided with an inflation inlet communicated with a sealing cavity of the control box body, the inflation valve is connected to the inflation inlet in a sealing mode, and the inflation end of the inflation valve extends out of the control box body. An inflation inlet and an inflation valve are arranged on the control box body. And gas with certain pressure can be filled into the sealed cavity through the inflation valve by means of inflation equipment. The structure of the inflation valve can prevent gas in the sealing cavity from leaking from the inflation inlet through the inflation valve. And if the sealing performance of the sealing cavity meets the product requirement, the pressure in the sealing cavity cannot be obviously reduced after standing for a certain time, so that the pressure of the sealing cavity can be detected through butt joint of a pressure gauge to the inflation end of the inflation valve, and the sealing effect of the control box body is judged according to the change of the pressure value. And the pressure of the sealing cavity is greater than the external air pressure, so that moisture can be effectively prevented from entering the sealing cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage making equipment, in particular to a control box and a refrigerating cabinet for beverage making. Background Art

[0002] With the improvement of living standards, consumers have an increasing demand for beverages, and therefore an increasing demand for beverage making equipment. In order to prevent food materials from fermenting and spoiling, beverage making equipment in the prior art usually needs to be equipped with refrigeration equipment such as refrigerators.

[0003] Refrigeration equipment generally includes a shell, a liquid pump, a liquid container, a refrigeration mechanism, etc. The shell forms a storage space, in which a liquid pump and a liquid container are installed. The refrigeration mechanism is used to refrigerate the storage space to ensure that the food materials in the liquid container will not ferment and rot, thereby ensuring food safety. However, due to the high humidity in the storage space of the refrigeration equipment, the liquid pump and the pump control box corresponding to the liquid pump need to be installed in the storage space. The pump control box contains electronic devices such as a control board, and the cavity of the pump control box needs to be completely sealed to prevent the reliability of the control board from being affected by the excessive humidity of the refrigeration equipment.

[0004] In the prior art, in order to ensure the sealing of the pump control box, the common practice is to seal the control box back plate and the control box body of the pump control box with a sealing gasket. However, it is unknown whether the sealing effect of the sealing gasket is reliable. If the sealing of the sealing gasket is unreliable, the product will be damaged due to corrosion of the circuit of the control board in a short period of time after leaving the factory. In addition to the pump control box, other control boxes with sealing requirements have this problem.

[0005] Therefore, how to determine whether the sealing of the control box is reliable is a technical problem that technicians in this field currently need to solve. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a control box, so as to determine whether the sealing of the control box is reliable;

[0007] Another object of the present invention is to provide a beverage making refrigerator having the control box.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A control box comprises a control box body and an inflation valve, wherein the control box body is provided with an inflation port connected to a sealed cavity of the control box body, the inflation valve is sealed to the inflation port, and an inflation end of the inflation valve extends outward from the control box body.

[0010] Optionally, in the above control box, the control box body has an inflation seat extending into the sealed cavity, and the inflation port is arranged at the inflation seat.

[0011] Optionally, in the above control box, the inflation valve comprises:

[0012] An inflation valve body, one end of which is a mounting end connected to the inflation port, and the other end of which is the inflation end, and the inflation valve body has an air venting passage connecting the sealed cavity with the outside;

[0013] The inflation valve core is slidably matched with the ventilation channel and moves between a first position and a second position. When the inflation valve core is in the first position, the ventilation channel is cut off. When the inflation valve core is in the second position, the ventilation channel is opened.

[0014] Optionally, in the above control box, the inflation valve further includes a reset elastic member, one end of the reset elastic member abuts against the inflation valve body, and the other end abuts against the inflation valve core to drive the inflation valve core to be in the first position.

[0015] Optionally, in the above-mentioned control box, in the direction from the mounting end to the inflation end, the ventilation channel includes an air inlet hole and a valve cavity, the aperture of the air inlet hole is smaller than the aperture of the valve cavity, so that a limiting step abutting the reset elastic member is formed at the junction of the air inlet hole and the valve cavity, and the valve core of the inflation valve slides in the valve cavity.

[0016] Optionally, in the above control box, the inflation valve core includes a valve stem and a valve plate connected to a first end of the valve stem;

[0017] The hole of the ventilation channel passing through the inflation end is a guide hole that is slidably matched with the valve stem, and an inflation gap is formed between the valve stem and the guide hole.

[0018] Optionally, in the above-mentioned control box, the valve chamber includes a sealing cut-off channel and a valve chamber ventilation channel, the sealing cut-off channel can be sealingly matched with the outer peripheral surface of the valve plate, the valve chamber ventilation channel and the outer peripheral surface of the valve plate have a ventilation gap, when the inflation valve spool is in the first position, the valve plate cooperates with the sealing cut-off channel, and when the inflation valve spool is in the second position, the valve plate cooperates with the valve chamber ventilation channel.

[0019] Optionally, in the above control box, the mounting end is threadedly engaged with the inflation port, and the inflation valve body further includes a limiting portion which is arranged between the mounting end and the inflation end and abuts against an outer wall of the control box body.

[0020] Optionally, in the above control box, the control box body comprises a control box back plate and a control box body, and the control box body is sealed and connected to the control box back plate via a first sealing gasket to form the sealed cavity;

[0021] The control box body is provided with a liquid pump mounting hole for the liquid pump to extend into the sealed cavity, the control box body at least covers a portion of the structure of the liquid pump to seal the covered portion of the liquid pump in the sealed cavity, and a second sealing gasket is provided at a position where the liquid pump contacts the control box body;

[0022] The control box body is provided with a control line hole and a signal line hole, the control line of the liquid pump extends out of the control box body through the control line hole, and the control line and the control line hole are sealed, the sensor line of the liquid pump extends out of the control box body through the signal line hole, and the sensor line and the signal line hole are sealed.

[0023] The control box provided by the utility model is provided with an inflation port connected to the sealed cavity on the control box body, and an inflation valve is provided on the inflation port. With the aid of the inflation device, a gas of a certain pressure can be filled into the sealed cavity through the inflation valve. The structure of the inflation valve can prevent the gas in the sealed cavity from leaking from the inflation port through the inflation valve. If the sealing performance of the sealed cavity meets the product requirements, the pressure in the sealed cavity will not drop significantly after standing for a certain period of time. Therefore, a pressure gauge can be connected to the inflation end of the inflation valve to detect the pressure of the sealed cavity, and the sealing effect of the control box body can be judged according to the change in the pressure value. In addition, since the sealed cavity is filled with gas of a certain pressure, the pressure of the sealed cavity is greater than the external air pressure, which can effectively prevent moisture from entering the sealed cavity.

[0024] A beverage preparation refrigerator comprises a refrigeration space and a control box arranged in the refrigeration space, wherein the control box is the control box as described in any one of the above items.

[0025] The beverage preparation refrigerator provided by the present invention adopts the control box of the above-mentioned solution, and thus has the technical effects of the above-mentioned control box, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1A schematic diagram of the structure of the control box disclosed in the embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the inflation valve disclosed in the embodiment of the utility model when it is opened;

[0029] Figure 3 It is a schematic diagram of the internal structure of the inflation valve disclosed in the embodiment of the utility model when it is closed;

[0030] Figure 4 This is a schematic diagram of the structure of a liquid pump disclosed in an embodiment of the utility model.

[0031] The meanings of the reference numerals in the figures are as follows:

[0032] 100 - control box body; 110 - control box back plate; 120 - first sealing pad; 130 - control box body; 131 - inflation port; 132 - inflation seat;

[0033] 200-liquid pump; 210-sensor circuit; 220-aviation plug; 230-control circuit; 240-second sealing gasket; 250-motor;

[0034] 300-inflating valve; 310-inflating valve body; 311-limiting step; 3111-air inlet hole; 312-limiting part; 313-limiting end plate; 314-sealing cut-off channel; 320-resetting elastic member; 330-inflating valve core; 331-valve stem; 332-valve plate. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide a control box, so as to judge whether the sealing of the control box is reliable;

[0036] Another core of the present invention is to provide a beverage making refrigerator having the control box.

[0037] 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.

[0038] An embodiment of the utility model discloses a control box, which has a sealing requirement, and thus a sealed cavity is formed. A device that needs to be sealed is arranged in the sealed cavity, such as an electronic component such as a control board. Since the electronic components such as the control board have a waterproof requirement, the sealed cavity needs to meet the sealing requirement to prevent moisture from entering the sealed cavity and damaging the control board.

[0039] like Figure 1-Figure 3 As shown, the control box disclosed in the embodiment of the utility model includes a control box body 100 and an inflation valve 300. The control box body 100 is provided with an inflation port 131 connected to the sealed cavity of the control box body 100. The inflation port 131 is used to connect the sealed cavity with the external atmosphere, so that a certain pressure of gas can be filled into the sealed cavity through the inflation port 131, or the gas in the sealed cavity can be discharged.

[0040] In order to meet the requirements of pressure maintenance and avoid leakage of pressurized gas in the sealed cavity, the control box is also provided with an inflation valve 300. The inflation valve 300 is sealed and connected to the inflation port 131. The inflation valve 300 can be a one-way valve, that is, only the pressurized gas is allowed to enter the sealed cavity, and the gas in the sealed cavity cannot leak through the one-way valve. Under normal circumstances, the air pressure in the sealed cavity is greater than the external atmospheric pressure, so under the action of the pressure difference, the valve core of the one-way valve is in a closed state. It should be noted that the inflation valve 300 can also be a switch valve, that is, when the inflation valve 300 is opened, the connection between the sealed cavity and the external atmosphere can be guaranteed, and when the inflation valve 300 is closed, the connection between the sealed cavity and the external atmosphere can be cut off. It can be understood by those skilled in the art that as long as the inflation valve 300 can maintain the pressure of the sealed cavity, it can also inflate the sealed cavity through the inflation valve 300. The specific structure of the inflation valve 300 is not limited in this embodiment.

[0041] The inflation end of the inflation valve 300 needs to extend outward from the control box body 100 so that it can be connected to the inflation device, and it is convenient to inflate the sealed cavity through the inflation valve 300. It should be noted that the pressure gas in the sealed cavity can also be released through the inflation end of the inflation valve 300, so as to facilitate the disassembly of the control box body 100 and the maintenance of the components in the sealed cavity.

[0042] In summary, the control box provided by the utility model is provided with an inflation port 131 connected to the sealed cavity on the control box body 100, and an inflation valve 300 is provided on the inflation port 131. With the aid of the inflation device, a gas of a certain pressure can be filled into the sealed cavity through the inflation valve 300. The structure of the inflation valve 300 can prevent the gas in the sealed cavity from leaking from the inflation port 131 through the inflation valve 300. If the sealing performance of the sealed cavity meets the product requirements, the pressure in the sealed cavity will not drop significantly after standing for a certain period of time. Therefore, a pressure gauge can be connected to the inflation end of the inflation valve 300 to detect the pressure of the sealed cavity, and the sealing effect of the control box body 100 can be judged according to the change in the pressure value. In addition, since the sealed cavity is filled with gas of a certain pressure, the pressure of the sealed cavity is greater than the external air pressure, which can effectively prevent moisture from entering the sealed cavity.

[0043] The inflation valve 300 needs to be installed on the inflation port 131. Since the wall thickness of the control box body 100 is relatively thin, if the inflation port 131 is opened on the plate of the control box body 100, the depth of the inflation port 131 is relatively shallow, which also leads to a shallow matching depth between the inflation valve 300 and the inflation port 131, and poor installation reliability.

[0044] Based on this, in this embodiment, Figure 2 As shown, the control box body 100 has an air-filling seat 132 extending into the sealed cavity, and the air-filling port 131 is arranged at the air-filling seat 132. The distance that the air-filling seat 132 extends into the sealed cavity should be selected according to the application scenario, as long as the reliable installation of the air-filling valve 300 can be ensured and the air leakage in the gap between the air-filling valve 300 and the air-filling port 131 can be avoided. In addition, the air-filling seat 132 extends into the sealed cavity, which can avoid the air-filling seat 132 extending into the sealed cavity to occupy the space outside the control box body 100, reduce the length of the air-filling valve 300 exposed outside the control box body 100, avoid the risk of collision due to the large exposed part of the air-filling valve 300, and reduce the risk of sealing failure caused by collision.

[0045] This embodiment discloses a specific structure of an inflation valve 300, such as Figure 2 and Figure 3 As shown, the inflation valve 300 includes an inflation valve body 310 and an inflation valve core 330. One end of the inflation valve body 310 is a mounting end connected to the inflation port 131, and the other end is an inflation end, and the inflation valve body 310 has an air passage connecting the sealed cavity with the outside.

[0046] The inflation valve core 330 is slidably matched with the ventilation channel and moves between a first position and a second position. When the inflation valve core 330 is in the first position, the ventilation channel is blocked, and when the inflation valve core 330 is in the second position, the ventilation channel is opened. Specifically, the above-mentioned blocking and opening actions can be achieved according to the size relationship between the inflation valve core 330 and the ventilation channel at different positions.

[0047] Those skilled in the art can understand that the operator can manually control the position of the inflation valve core 330, that is, when the inflation valve core 330 is adjusted to the first position, the ventilation channel is cut off, and when the inflation valve core 330 is adjusted to the second position, the ventilation channel is opened. Of course, the inflation valve core 330 can also be manually adjusted to the second position to open the ventilation channel, and the inflation valve core 330 can be maintained in the first position under the action of the pressure difference, that is, after the sealed cavity is inflated, the pressure will be greater than the external air pressure, so the pressure difference will drive the inflation valve core 330 to move to the first position and remain in the first position. If the ventilation channel needs to be opened, the operator manually moves the inflation valve core 330 and moves the inflation valve core 330 to the second position.

[0048] It should be noted that in order to ensure the reliability of the inflation valve 300 and prevent the risk of failure caused by relying solely on the pressure difference to keep the inflation valve core 330 in the first position, in this embodiment, the inflation valve 300 also includes a reset elastic member 320, one end of the reset elastic member 320 abuts against the inflation valve body 310, and the other end abuts against the inflation valve core 330 to drive the inflation valve core 330 to the first position. In this embodiment, the reset elastic member 320 is added, and the inflation valve core 330 is pressed in the first position by relying on the elastic force of the reset elastic member 320. If the inflation valve core 330 needs to be moved to the second position, the elastic force of the reset elastic member 320 needs to be overcome, so that the reset elastic member 320 is compressed and deformed. When the driving force on the inflation valve core 330 is released, the reset elastic member 320 is reset to push the inflation valve core 330 to the first position. Specifically, the resetting elastic member 320 may be a compression spring, or other components with elastic resetting function. The present embodiment does not limit the specific structure of the resetting elastic member 320 .

[0049] In the present embodiment, in the direction from the mounting end to the inflation end, the ventilation channel includes an air inlet hole 3111 and a valve cavity. The aperture of the air inlet hole 3111 is smaller than the aperture of the valve cavity, so that a limiting step 311 abutting against the reset elastic member 320 is formed at the junction of the air inlet hole 3111 and the valve cavity. One end of the reset elastic member 320 abuts against the limiting step 311. The air inlet hole 3111 is located at one end of the mounting end. Since the aperture of the air inlet hole 3111 is smaller than the aperture of the valve cavity, the wall thickness at the air inlet hole 3111 is thicker, and the wall thickness of the mounting end is thicker than other positions, which can improve the reliability of the connection between the mounting end and the inflation port 131 and avoid the risk of rupture due to thin wall thickness during installation.

[0050] The inflation valve core 330 slides in the valve cavity. Since the aperture of the valve cavity is relatively large, the sliding of the inflation valve core 330 is convenient. At the same time, the ventilation channel (i.e., the air inlet hole 3111) that does not need to cooperate with the inflation valve core 330 is designed with a smaller aperture. In addition to forming a limiting step 311 to provide a positioning basis for the reset elastic member 320, it can also increase the wall thickness of the installation end to improve the installation reliability.

[0051] The inflation valve core 330 includes a valve stem 331 and a valve plate 332 connected to the first end of the valve stem 331. The valve plate 332 is a sealing component of the inflation valve core 330, that is, the valve plate 332 is used to cut off the ventilation channel, and the reset elastic member 320 abuts against the valve plate 332. The valve stem 331 can improve the reliability of the inflation valve core 330 during the movement of the first position and the second position, and prevent the inflation valve core 330 from being skewed during the movement, causing the inflation valve core 330 to be stuck in the valve cavity, affecting the use.

[0052] The hole of the ventilation channel through the inflation end is a guide hole that slides with the valve stem 331, and an inflation gap is formed between the valve stem 331 and the guide hole. During inflation, the inflation device can push open the valve stem 331 and push the inflation valve core 330 to move to the second position, so that the valve plate 332 loses the function of closing the ventilation channel. The ventilation channel is opened. Although the valve stem 331 does not separate from the guide hole at this time, there is an inflation gap between the valve stem 331 and the guide hole. Therefore, the inflation device can fill the pressurized gas into the sealed cavity of the control box through the inflation gap.

[0053] Furthermore, the valve cavity includes a sealing cut-off channel 314 and a valve cavity ventilation channel, and the aperture of the sealing cut-off channel 314 is smaller than the aperture of the valve cavity ventilation channel. After the valve plate 332 slides into the sealing cut-off channel 314, the outer peripheral surface of the valve plate 332 can be sealed with the sealing cut-off channel 314; after the valve plate 332 slides into the valve cavity ventilation channel, there is a ventilation gap between the outer peripheral surface of the valve plate 332 and the valve cavity ventilation channel. When the inflation valve core 330 is in the first position, the valve plate 332 cooperates with the sealing cut-off channel 314, and when the inflation valve core 330 is in the second position, the valve plate 332 cooperates with the valve cavity ventilation channel.

[0054] The end plate of the inflation end of the inflation valve body 310 forms a limiting end plate 313 for limiting the movement of the valve plate 332. The guide hole is opened on the limiting end plate 313. The inflation valve core 330 is acted upon by the reset elastic member 320, and the valve plate 332 is pushed into the sealing cut-off channel 314 and abuts against the limiting end plate 313.

[0055] In order to facilitate the installation of the inflation valve 300, the installation end of the inflation valve 300 can be threadedly matched with the inflation port 131, that is, an internal thread is set on the inflation port 131, and an external thread is correspondingly set on the installation end of the inflation valve 300. The inflation valve body 310 also includes a limit portion 312 arranged between the installation end and the inflation end and abutting against the outer wall of the control box body 100. When installing the inflation valve 300, the installation end is screwed into the inflation port 131 until the limit portion 312 abuts against the outer wall of the control box body 100. In order to facilitate the rotation of the inflation valve 300, the limit portion 312 can be designed as a hexagonal structure so that it can be installed with a wrench, and friction patterns can also be designed on the outer surface of the limit portion 312 to increase friction, so that the operator can rotate the limit portion 312 to match the installation end in the inflation port 131.

[0056] like Figure 1As shown, in this embodiment, the control box body 100 includes a control box back plate 110 and a control box body 130, and the control box body 130 is sealed and connected to the control box back plate 110 through a first sealing gasket 120 to form a sealed cavity. The sealing effect of the sealed cavity is affected by many factors, such as the quality of the first sealing gasket 120 and the installation process, which can affect the sealing effect of the sealed cavity. The utility model fills the sealed cavity with pressurized gas through the inflation valve 300, and then the air pressure of the sealed cavity can be detected at the inflation valve 300 by a pressure gauge. If the air pressure does not drop significantly, it means that the sealing effect of the sealed cavity meets the requirements; if there is a significant drop, the control box back plate 110 and the control box body 130 need to be reinstalled, and the first sealing gasket 120 needs to be replaced in special cases.

[0057] The control box body 130 is provided with a liquid pump mounting hole for the liquid pump 200 to extend into the sealed cavity. The control box body 100 at least covers a portion of the structure of the liquid pump 200 to seal the covered portion of the liquid pump 200 in the sealed cavity.

[0058] like Figure 1 and Figure 4 As shown, in one embodiment, in order to reduce the number of openings of the control box body 130 and achieve a better sealing effect, the control box body 130 can cover the motor part of the liquid pump 200, and expose the liquid pipeline of the liquid pump 200. At this time, the control box body 130 is provided with a hole for the motor 250 of the liquid pump 200 to extend into. During installation, the control box body 130 can be installed first, and then the liquid pump 200 can be installed on the control box body 130, and the motor 250 of the liquid pump 200 will extend into the sealed cavity. The second sealing gasket 240 can be set at the position where the liquid pump 200 contacts the control box body 130, so as to achieve sealing.

[0059] Furthermore, in order to control the liquid pump 200 and monitor the amount of liquid in the liquid pump 200, the liquid pump 200 needs to be connected to the control line 230 and the sensor line 210. In this case, a control line hole for the control line 230 to pass through and a signal line hole for the sensor line 210 to pass through can be opened on the control box body 130. It should be noted that the control line 230 and the control line hole, as well as the sensor line 210 and the signal line hole, need to be sealed.

[0060] For example, an aviation plug 220 can be installed at the control line hole to ensure the stability of the control line 230 and the sealing of the control line hole; for the signal line hole, the aviation plug 220, or a flange or other connector can also be used to achieve the installation of the sensor line 210 and ensure the sealing of the signal line hole.

[0061] in addition, Figure 1In the illustrated embodiment, three liquid pumps 200 share one control box body 130 . In other embodiments, one control box body 130 can be used to accommodate other numbers of liquid pumps 200 .

[0062] Moreover, in practical applications, multiple Figure 1 The liquid pump assembly and the control box body 100 shown in the figure can be multiple Figure 1 The liquid pump groups shown are connected in series. According to the location of each liquid pump group, one or two aviation plugs can be installed on the control box body 130 of the control box body 100. For example, two aviation plugs need to be set on the liquid pump groups connected in series at the starting position and the middle position, one aviation plug is connected to the upstream control signal or the upstream liquid pump group, and the other aviation plug is connected to the downstream liquid pump group. The liquid pump group connected in series at the end position only needs to be set with one aviation plug, so that each liquid pump 200 in each pump group can be independently controlled.

[0063] In the above embodiment, the motor 250 of the liquid pump 200 is partially located in the sealed space, while in other embodiments, the liquid pump 200 can be completely covered in the sealed space within the control box body 130. In this case, it is necessary to open holes in the control box body 130 for the liquid pipeline to pass through. The number of holes can correspond to the number of liquid pipelines, and they are not listed one by one here.

[0064] The utility model embodiment also discloses a refrigerated cabinet for making beverages, including a refrigerated space and a control box arranged in the refrigerated space. The control box is the control box disclosed in the above embodiment. Since the control box disclosed in the above embodiment is adopted, the technical effects of the above control box are also possessed, which will not be repeated herein.

[0065] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0067] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0068] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A control box, characterized in that: The invention comprises a control box body (100) and an inflation valve (300), wherein the control box body (100) is provided with an inflation port (131) connected to a sealed cavity of the control box body (100), the inflation valve (300) is sealedly connected to the inflation port (131), and an inflation end of the inflation valve (300) protrudes from the control box body (100).

2. The control box according to claim 1, characterized in that: The control box body (100) has an inflation seat (132) extending into the sealed cavity, and the inflation port (131) is arranged on the inflation seat (132).

3. The control box according to claim 1, characterized in that: The inflation valve (300) comprises: An inflation valve body (310), one end of which is a mounting end connected to the inflation port (131), and the other end of which is the inflation end, and the inflation valve body (310) has an air venting passage connecting the sealed cavity with the outside; The inflation valve core (330) is slidably matched with the ventilation channel and moves between a first position and a second position. When the inflation valve core (330) is in the first position, the ventilation channel is blocked, and when the inflation valve core (330) is in the second position, the ventilation channel is opened.

4. The control box according to claim 3, characterized in that: The inflation valve (300) further comprises a reset elastic member (320), one end of the reset elastic member (320) abuts against the inflation valve body (310), and the other end abuts against the inflation valve core (330) to drive the inflation valve core (330) to be in the first position.

5. The control box according to claim 4, characterized in that: In the direction from the mounting end to the inflation end, the ventilation channel includes an air inlet hole (3111) and a valve cavity, the aperture of the air inlet hole (3111) is smaller than the aperture of the valve cavity, so that a limiting step abutting the reset elastic member (320) is formed at the junction of the air inlet hole (3111) and the valve cavity, and the inflation valve core (330) is slidably fitted in the valve cavity.

6. The control box according to claim 5, characterized in that: The inflation valve core (330) comprises a valve stem (331) and a valve plate (332) connected to a first end of the valve stem (331); The hole through which the ventilation channel passes through the inflation end is a guide hole that is slidably matched with the valve stem (331), and an inflation gap is formed between the valve stem (331) and the guide hole.

7. The control box according to claim 6, characterized in that: The valve cavity includes a sealing stop channel (314) and a valve cavity ventilation channel. The sealing stop channel (314) can be sealed and matched with the outer peripheral surface of the valve plate (332). The valve cavity ventilation channel and the outer peripheral surface of the valve plate (332) have a ventilation gap. When the inflation valve core (330) is in the first position, the valve plate (332) cooperates with the sealing stop channel (314). When the inflation valve core (330) is in the second position, the valve plate (332) cooperates with the valve cavity ventilation channel.

8. The control box according to claim 3, characterized in that: The mounting end is threadably engaged with the inflation port (131), and the inflation valve body (310) further comprises a limiting portion (312) disposed between the mounting end and the inflation end and abutting against an outer wall of the control box body (100).

9. The control box according to any one of claims 1 to 8, characterized in that: The control box body (100) comprises a control box back plate (110) and a control box body (130); the control box body (130) is sealed and connected to the control box back plate (110) via a first sealing gasket (120) to form the sealed cavity; The control box body (130) is provided with a liquid pump mounting hole for the liquid pump (200) to extend into the sealed cavity; the control box body (100) at least covers a portion of the structure of the liquid pump (200) so as to seal the covered portion of the liquid pump (200) in the sealed cavity; and a second sealing gasket (240) is provided at a position where the liquid pump (200) contacts the control box body (130); The control box body (130) is provided with a control line hole and a signal line hole. The control line (230) of the liquid pump (200) extends out of the control box body (130) through the control line hole, and a seal is formed between the control line (230) and the control line hole. The sensor line (210) of the liquid pump (200) extends out of the control box body (130) through the signal line hole, and a seal is formed between the sensor line (210) and the signal line hole.

10. A refrigerator for preparing beverages, characterized in that: It comprises a refrigerated space and a control box arranged in the refrigerated space, and the control box is the control box according to any one of claims 1 to 9.

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