Compressor with refrigerant temperature and pressure detection function

Abstract

The utility model belongs to the technical field of compressors, and discloses a compressor with refrigerant temperature and pressure detection, which comprises a casing, a circuit board and a sensor, a compression cavity and an electrical cavity which are independently arranged are arranged in the casing, the circuit board is mounted in the electrical cavity, the sensor is electrically connected with the circuit board, and the sensor penetrates through the casing and is hermetically connected with the casing. The sensor extends into the compression cavity to detect the temperature and pressure in the compression cavity. It can be understood that in the actual working process, due to the fact that the sensor stretches into the compression cavity to detect the temperature and pressure in the compression cavity, real-time detection of the temperature and pressure in the compression cavity is achieved, the detection result is direct and accurate, and the circuit board can receive signals fed back by the sensor and conduct processing and judgment; real-time protection is achieved, and signals are fed back to an external client so that the client can give an instruction conveniently. In addition, due to the fact that the sensor is integrated on the machine shell, burden is reduced for external increasingly complex refrigerating system design.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor with self - contained refrigerant temperature and pressure detection. Background Art

[0002] The compressor is a core component in the refrigeration system. The temperature and pressure of the refrigerant in the compressor have a very important impact on the normal operation of the compressor. At present, for the detection of the refrigerant temperature and pressure of the compressor, a temperature detector and a pressure sensor are usually installed on the pipeline connected to the refrigerant flow port of the compressor. This detection method has relatively large errors and increases the number of components in the refrigeration system, which is not conducive to the assembly of the refrigeration system.

[0003] In order to achieve accurate detection of the temperature and pressure in the compression chamber and reduce the burden on the refrigeration system, it is urgent to propose a compressor with self - contained refrigerant temperature and pressure detection. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a compressor with self - contained refrigerant temperature and pressure detection. The compressor can realize the inspection of its own temperature and pressure through sensors, achieve its own real - time protection, the detection results are directly accurate, and because the compressor is self - contained with sensors, it reduces the burden on the increasingly complex external refrigeration system design.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a compressor with self - contained refrigerant temperature and pressure detection, including: a housing, which has an independently arranged compression chamber and an electrical chamber; a circuit board, which is installed in the electrical chamber; a sensor, which is electrically connected to the circuit board, the sensor penetrates through the housing and is hermetically connected to the housing, and the sensor extends into the compression chamber to detect the temperature and pressure in the compression chamber.

[0007] In some embodiments, the compression chamber includes a suction chamber, an exhaust chamber and a gas supplement chamber, and the sensors are multiple, and the multiple sensors are respectively arranged corresponding to the suction chamber, the exhaust chamber and the gas supplement chamber.

[0008] In some embodiments, the sensor includes: a sensing element, which includes a pressure detection element and a temperature detection element; a transmission line, one end of the transmission line is connected to the sensing element, and the other end is connected to the circuit board.

[0009] In some specific embodiments, the transmission line includes a protective outer sheath, and a first inner core and a second inner core disposed within the protective outer sheath. The first inner core is connected to the pressure detection element and the circuit board, and the second inner core is connected to the temperature detection element and the circuit board.

[0010] In some more specific embodiments, two plug-in terminals are provided on the circuit board, and the two plug-in terminals are respectively plugged into the first inner core and the second inner core.

[0011] In some embodiments, the compressor with self-contained refrigerant temperature and pressure detection further includes an external terminal, which penetrates through the housing and is connected to the circuit board, and the external terminal is used to connect to an external client.

[0012] In some embodiments, the housing includes: a first housing that defines the compression chamber; a second housing that defines the electrical chamber; wherein: the first housing and the second housing are connected by a connecting member.

[0013] In some specific embodiments, there are a plurality of the connecting members, and the plurality of connecting members are spaced apart along the circumferential direction of the housing.

[0014] In some specific embodiments, the second housing includes a first sub-housing and a second sub-housing, the first sub-housing and the second sub-housing are snap-fitted and define the electrical chamber, and the first sub-housing, the second sub-housing and the first housing are connected by the connecting member.

[0015] In some specific embodiments, the first housing includes a housing body and an end cover, the housing body has an open cavity, and the end cover is snap-fitted to the open end of the housing body to seal the cavity to form the compression chamber.

[0016] Advantages of the present utility model: During the actual working process, since the sensor extends into the compression chamber to detect the temperature and pressure inside the compression chamber, real-time inspection of the temperature and pressure inside the compression chamber is achieved, and the detection results are direct and accurate. The circuit board can receive the signals fed back by the sensor and perform processing and judgment, realizing real-time protection of itself and feeding back the signals to the external client for the client to issue instructions. In addition, since the sensor is integrated on the housing, the design of the increasingly complex external refrigeration system is relieved.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] Figure 1It is a schematic structural diagram of a compressor with built-in refrigerant temperature and pressure detection according to an embodiment of the present invention;

[0019] Figure 2 It is a left view of a compressor with built-in refrigerant temperature and pressure detection according to an embodiment of the present invention;

[0020] Figure 3 Is Figure 2 The sectional view taken along line A-A in

[0021] Figure 4 It is a front view of a compressor with built-in refrigerant temperature and pressure detection according to an embodiment of the present invention;

[0022] Figure 5 Is Figure 4 The sectional view taken along line B-B in

[0023] Reference numerals:

[0024] 100, housing; 101, compression chamber; 1011, suction chamber; 1012, discharge chamber; 1013, gas supplement chamber; 102, electrical chamber; 110, first housing; 111, housing body; 112, end cover; 120, second housing; 121, first sub-housing; 122, second sub-housing;

[0025] 200, sensor; 210, sensing element; 220, transmission line; 221, protective outer skin; 222, first inner core; 223, second inner core;

[0026] 300, circuit board; 400, external terminal. Detailed implementation manners

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the accompanying drawings, rather than all the structures.

[0028] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0030] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] The present utility model discloses a compressor with self - contained refrigerant temperature and pressure detection (hereinafter referred to as "compressor" for convenience of description). As Figures 1 - 5 shown, the compressor includes a housing 100, a circuit board 300 and a sensor 200. An independently arranged compression chamber 101 and an electrical chamber 102 are provided in the housing 100. The circuit board 300 is installed in the electrical chamber 102. The sensor 200 is electrically connected to the circuit board 300. The sensor 200 penetrates through the housing 100 and is hermetically connected to the housing 100. The sensor 200 extends into the compression chamber 101 to detect the temperature and pressure in the compression chamber 101. It can be understood that during the actual working process, since the sensor 200 extends into the compression chamber 101 to detect the temperature and pressure in the compression chamber 101, real - time inspection of the temperature and pressure inside the compression chamber 101 is realized, and the detection result is direct and accurate. The circuit board 300 can receive the signal fed back by the sensor 200 and process and judge it, realizing the real - time protection of itself and feeding back the signal to an external client so that the client can issue instructions. In addition, since the sensor 200 is integrated on the housing 100, the design of the increasingly complex external refrigeration system is relieved of burden.

[0032] In some embodiments, the compression chamber 101 includes a suction chamber 1011, an exhaust chamber 1012, and a gas supplementing chamber 1013. There are three sensors 200, and the multiple sensors 200 are respectively arranged corresponding to the suction chamber 1011, the exhaust chamber 1012, and the gas supplementing chamber 1013. It can be understood that the suction chamber 1011, the exhaust chamber 1012, and the gas supplementing chamber 1013 are respectively provided with a suction port, an exhaust port, and a gas supplementing port. By arranging the three sensors 200 corresponding to the suction port, the exhaust port, and the gas supplementing port respectively, during the actual working process, parameters such as the outlet air temperature, the outlet air pressure, the return air temperature, the return air pressure, the gas supplementing temperature, and the gas supplementing pressure can be monitored in real time, realizing the real-time monitoring of the temperature and pressure at key positions in the compression chamber 101, and further enhancing the ability of self real-time protection. Of course, in other embodiments of the present utility model, the number and specific distribution positions of the sensors 200 can also be adjusted according to actual needs, not limited to those described above.

[0033] In some embodiments, as Figures 4 - 5 shown, the sensor 200 includes a sensing element 210 and a transmission line 220. The sensing element 210 includes a pressure detection element and a temperature detection element. One end of the transmission line 220 is connected to the sensing element 210, and the other end is connected to the circuit board 300. It can be understood that the electrical connection between the sensing element 210 and the circuit board 300 is realized through the transmission line 220 arranged outside the housing 100, which can ensure that the sensing element 210 timely transmits the detection signal to the circuit board 300, thereby ensuring the detection reliability.

[0034] In some specific embodiments, referring to Figure 1 shown, the transmission line 220 includes a protective outer sheath 221 and a first inner core 222 and a second inner core 223 arranged inside the protective outer sheath 221. The first inner core 222 is connected to the pressure detection element and the circuit board 300, and the second inner core 223 is connected to the temperature detection element and the circuit board 300. It can be understood that the transmission line 220 integrates the first inner core 222 connected to the pressure detection element and the second inner core 223 connected to the temperature detection element on a protective outer sheath 221. On the one hand, it is convenient for wiring, which is beneficial to improving the assembly efficiency of the compressor. On the other hand, it can reduce the number of wires outside the compressor and improve the aesthetic degree.

[0035] In some more specific embodiments, two plug-in terminals are provided on the circuit board 300, and the two plug-in terminals are respectively plugged into the first inner core 222 and the second inner core 223. It can be understood that the first inner core 222 and the second inner core 223 are electrically connected to the circuit board 300 through the plug-in terminals. On the one hand, in the actual assembly process, only the first inner core 222 and the second inner core 223 need to be plugged into the corresponding plug-in terminals, which facilitates the user's wiring. On the other hand, it can improve the connection stability between the first inner core 222 and the second inner core 223 and the circuit board 300, ensuring that signals can be stably transmitted.

[0036] It should be additionally noted here that in other embodiments of the present invention, the structure of the transmission line 220 and the connection manner with the circuit board 300 can be adjusted according to actual needs and are not limited to the foregoing limitations.

[0037] In some embodiments, referring to Figure 1 as shown, the compressor with self-contained refrigerant temperature and pressure detection further includes an external terminal 400. The external terminal 400 passes through the housing 100 and is connected to the circuit board 300. The external terminal 400 is used to connect to an external client. It can be understood that the external terminal 400 can feedback the signal converted by the circuit board 300 to the client so that the client can issue instructions. By providing the external terminal 400 to connect to the external client, on the one hand, it facilitates the connection and is convenient for the user to assemble. On the other hand, it can ensure the connection stability and ensure that the signal can be stably transmitted.

[0038] In some embodiments, such as Figure 2 , Figure 3 and Figure 5 as shown, the housing 100 includes a first housing 110 and a second housing 120. The first housing 110 defines a compression chamber 101, and the second housing 120 defines an electrical chamber 102. The first housing 110 and the second housing 120 are connected by a connecting member. It can be understood that the housing 100 is divided into the first housing 110 and the second housing 120. The first housing 110 defines the compression chamber 101, and the second housing 120 defines the electrical chamber 102. On the one hand, compared with the integral structure, the split structure is easier to manufacture, which is beneficial to reducing the manufacturing cost. On the other hand, it can ensure that the compression chamber 101 and the electrical chamber 102 are completely isolated, avoiding mutual influence between the two chambers.

[0039] It should be supplemented that in the embodiments of the present invention, the connecting member can be selected as a screw, a rivet or a pin and other structures according to actual needs. In addition, in other embodiments of the present invention, the first housing 110 and the second housing 120 are directly connected by welding or other connection methods and are not limited to the above description.

[0040] In some specific embodiments, there are multiple connecting members, and the multiple connecting members are distributed at intervals along the circumferential direction of the casing 100. Thus, the multiple connecting members can enhance the connection strength between the first casing 110 and the second casing 120, thereby enhancing the strength of the entire casing 100, which is beneficial to improving the anti-deformation ability of the compressor.

[0041] In some specific embodiments, such as Figure 2 , Figure 3 and Figure 5 shown, the second casing 120 includes a first sub-casing 121 and a second sub-casing 122. The first sub-casing 121 and the second sub-casing 122 are snapped together and define an electrical cavity 102. The first sub-casing 121, the second sub-casing 122 and the first casing 110 are connected by connecting members. It can be understood that by dividing the second casing 120 into the first sub-casing 121 and the second sub-casing 122, during actual assembly, the circuit board 300 is first installed on the first sub-casing 121 or the second sub-casing 122, then the first sub-casing 121 and the second casing 120 are snapped together, and then the first sub-casing 121, the second sub-casing 122 and the first casing 110 are connected by connecting members, so the assembly is very convenient. Of course, in other embodiments of the present invention, the first sub-casing 121 and the second sub-casing 122 can also be connected by other means such as welding.

[0042] In some specific embodiments, such as Figure 2 , Figure 3 and Figure 5 shown, the first casing 110 includes a casing body 111 and an end cover 112. The casing body 111 has an open cavity, and the end cover 112 is snapped onto the open end of the casing body 111 to seal the cavity to form a compression cavity 101. Compared with an integral structure, the split structure is easier to manufacture, which is beneficial to reducing the manufacturing cost.

[0043] Advantages of the compressor in this embodiment:

[0044] First: It realizes the function of checking the temperature and pressure of its own refrigerant, realizes its own real-time protection, and the detection result is more direct and accurate.

[0045] Second: The compressor is equipped with a sensor 200 to realize temperature and pressure checking, which is cheaper than an external temperature and pressure checking device, and reduces the burden on the increasingly complex external refrigeration system design.

[0046] In the description of this specification, the descriptions referring to terms such as "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Obviously, the above embodiments of the present utility model are merely examples given for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A compressor with built-in refrigerant temperature and pressure detection, characterized in that: include A casing (100), wherein the casing (100) has a compression chamber (101) and an electrical chamber (102) independently arranged therein; A circuit board (300), the circuit board (300) being installed in the electrical cavity (102); A sensor (200), wherein the sensor (200) is electrically connected to the circuit board (300), the sensor (200) is disposed through the housing (100) and is sealed to the housing (100), and the sensor (200) extends into the compression chamber (101) to detect the temperature and pressure in the compression chamber (101).

2. The compressor with built-in refrigerant temperature and pressure detection according to claim 1, characterized in that: The compression chamber (101) comprises an air intake chamber (1011), an air exhaust chamber (1012) and an air supply chamber (1013); the sensor (200) is multiple, and the multiple sensors (200) are respectively arranged corresponding to the air intake chamber (1011), the air exhaust chamber (1012) and the air supply chamber (1013).

3. The compressor with built-in refrigerant temperature and pressure detection according to claim 1, characterized in that: The sensor (200) comprises: A sensing element (210), wherein the sensing element (210) comprises a pressure sensing element and a temperature sensing element; A transmission line (220), one end of the transmission line (220) is connected to the sensor element (210), and the other end of the transmission line (220) is connected to the circuit board (300).

4. The compressor with built-in refrigerant temperature and pressure detection according to claim 3, characterized in that: The transmission line (220) comprises a protective outer skin (221) and a first inner core (222) and a second inner core (223) arranged in the protective outer skin (221), wherein the first inner core (222) is connected to the pressure detection element and the circuit board (300), and the second inner core (223) is connected to the temperature detection element and the circuit board (300).

5. The compressor with built-in refrigerant temperature and pressure detection according to claim 4, characterized in that: The circuit board (300) is provided with two plug-in terminals, and the two plug-in terminals are respectively plugged into the first inner core (222) and the second inner core (223).

6. The compressor with built-in refrigerant temperature and pressure detection according to any one of claims 1 to 5, characterized in that: It also includes an external terminal (400), which is arranged in the housing (100) and connected to the circuit board (300), and is used to connect to an external client.

7. The compressor with built-in refrigerant temperature and pressure detection according to any one of claims 1 to 5, characterized in that: The housing (100) comprises: A first shell (110), wherein the first shell (110) defines the compression chamber (101); A second housing (120), the second housing (120) defining the electrical cavity (102); wherein: The first shell (110) and the second shell (120) are connected via a connecting piece.

8. The compressor with built-in refrigerant temperature and pressure detection according to claim 7, characterized in that: There are a plurality of connecting members, and the plurality of connecting members are distributed at intervals along the circumference of the housing (100).

9. The compressor with built-in refrigerant temperature and pressure detection according to claim 7, characterized in that: The second shell (120) comprises a first sub-shell (121) and a second sub-shell (122); the first sub-shell (121) and the second sub-shell (122) are buckled together and define the electrical cavity (102); the first sub-shell (121), the second sub-shell (122) and the first shell (110) are connected via the connecting piece.

10. The compressor with built-in refrigerant temperature and pressure detection according to claim 7, characterized in that: The first shell (110) comprises a shell body (111) and an end cover (112); the shell body (111) has an open cavity; the end cover (112) is buckled onto the open end of the shell body (111) to seal the cavity to form the compression chamber (101).

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