Electrode terminal, compressor and refrigeration device

Abstract

Disclosed are an electrode terminal, a compressor and a refrigeration device. The electrode terminal is used for a compressor, and comprises: an outer cover (100), which comprises a bottom plate (110) and a surrounding plate (120) connected to the outer periphery of the bottom plate (110); at least three electrodes (200), which pass through the bottom plate (110) and are in insulated connection with the bottom plate (110); and a protective sleeve (300), which comprises at least three protective units (310), wherein the three protective units (310) are correspondingly sleeved on three electrodes (200), respectively.

Description

Electrode terminal, compressor and refrigeration equipment

[0001] Related applications

[0002] This application claims priority to Chinese patent applications No. 202311601747.8 and No. 202323217188.9 filed on November 27, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of refrigeration equipment, and in particular to an electrode terminal, a compressor, and a refrigeration equipment. Background Art

[0004] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It draws in low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the motor-driven piston, and discharges high-temperature, high-pressure refrigerant gas through the exhaust pipe, powering the refrigeration cycle.

[0005] During the operation of the compressor, copper cuttings brought in by the refrigerant in the pipes are easily attached to the electrode terminals, which can easily cause short circuits and burning of the electrode terminals, and thus cause most electrode terminal failures.

[0006] Summary of the Invention

[0007] The main purpose of this application is to provide an electrode terminal, which aims to reduce the possibility of metal debris flowing with engine oil and refrigerant adhering to the electrode.

[0008] To achieve the above objectives, the electrode terminal proposed in this application is used in a compressor and includes:

[0009] An outer cover, the outer cover comprising a bottom plate and a surrounding plate connected to an outer periphery of the bottom plate;

[0010] at least three electrodes, the at least three electrodes passing through the bottom plate and being insulated from and connected to the bottom plate;

[0011] The protective cover comprises at least three protective units, and the three protective units are respectively provided with sleeves corresponding to the three electrodes.

[0012] In one embodiment, two adjacent protection units are connected to each other.

[0013] In one embodiment, two adjacent protection units are fixedly connected.

[0014] In one embodiment, two adjacent protection units are glued to each other.

[0015] In one embodiment, at least three of the protection units are integrally formed.

[0016] In one embodiment, at least one connecting rib is provided between two adjacent protection units.

[0017] In one embodiment, two adjacent protection units are detachably connected.

[0018] In one embodiment, two adjacent protection units are connected in a sliding manner.

[0019] In one embodiment, two adjacent protection units are interlocked with each other.

[0020] In one embodiment, a connecting piece is provided between two adjacent protection units.

[0021] In one embodiment, two adjacent protection units are connected by magnetic attraction.

[0022] In one embodiment, two adjacent protection units are movably connected.

[0023] In one embodiment, two adjacent protection units are rotatably connected.

[0024] In one embodiment, the protection unit is provided with a receiving groove for receiving the electrode; the protection unit includes a first cylinder and a second cylinder of different lengths, the first cylinder and the second cylinder are respectively sleeved on the electrode, the second cylinder exposes the top end of the electrode, and the exposed top end of the electrode is used to connect the protector.

[0025] In one embodiment, the exposed length of the top end of the electrode is not less than 5 mm.

[0026] In one embodiment, an isolation gap is provided between the protective cover and the enclosure.

[0027] In one embodiment, the width of the isolation gap is not less than 0.1 mm.

[0028] In one embodiment, an escape opening is provided between two of the first cylinders adjacent to the second cylinders, and the escape opening is used to escape the protector.

[0029] In one embodiment, a resisting portion is formed on the inner wall of the accommodating groove of the first cylinder, and the resisting portion resists the top surface of the electrode.

[0030] In one embodiment, the interfering portion interferes with a portion of the top surface of the electrode.

[0031] In one embodiment, an electrode sheet is provided on the electrode, and in the first cylinder, the electrode sheet is provided in the receiving groove; and

[0032] In the second cylinder, the electrode sheet passes through the accommodating groove and is electrically connected to the protector.

[0033] In one embodiment, a fixing portion is provided in the receiving groove, and the fixing portion is in conflict with the electrode.

[0034] In one embodiment, an arc-shaped notch groove is formed on the fixing portion, and the electrode contacts the groove wall of the arc-shaped notch groove.

[0035] In one embodiment, a recess is formed on the top of the first cylinder, and the recess is used for installing a plug-in terminal.

[0036] In one embodiment, a wire groove is provided on the top of the first cylinder, and the wire groove is used to accommodate wires.

[0037] In one embodiment, an insulator is provided between the electrode and the bottom plate, the electrode passes through the insulator to be electrically connected to the outside world, and the insulator is made of at least one of glass crystal or ceramic material.

[0038] In one embodiment, the protection unit is sleeved on the insulator.

[0039] In one embodiment, an adapting groove is provided on one side wall of the accommodating groove, and the adapting groove is used to accommodate the insulator.

[0040] In one embodiment, a plurality of reinforcing ribs are provided between the bottom plate and the enclosure plate.

[0041] The present application further proposes an electrode terminal for a compressor, comprising:

[0042] An outer cover, the outer cover comprising a bottom plate and a surrounding plate connected to an outer periphery of the bottom plate, the bottom plate and the surrounding plate being integrally formed;

[0043] three electrodes, the three electrodes passing through the bottom plate and being insulated and connected to the bottom plate;

[0044] A protective cover, the protective cover comprising three protective units, wherein the three protective units are respectively provided with the three electrodes;

[0045] Among them, two first cylinders and one second cylinder are provided in the three protection units, and the top of one of the three electrodes is exposed through the second cylinder. The exposed length of the top of the electrode is not less than 5 mm, and an isolation gap is provided between the protective cover and the enclosure.

[0046] In one embodiment, two adjacent protection units are connected to each other.

[0047] In one embodiment, the three protection units are integrally formed.

[0048] In one embodiment, the protection unit is provided with a receiving groove for receiving the electrode; the exposed top end of the electrode is used for connecting to the protector.

[0049] The present application further proposes an electrode terminal for a compressor, comprising:

[0050] An outer cover, the outer cover comprising a bottom plate and a surrounding plate connected to an outer periphery of the bottom plate;

[0051] three electrodes, the three electrodes passing through the bottom plate and being insulated and connected to the bottom plate;

[0052] A protective cover, the protective cover comprising three protective units, wherein the three protective units are respectively provided with the three electrodes;

[0053] The protection unit is provided with a receiving groove for receiving the electrode, and a bulge is formed on the inner wall of the receiving groove to form a resistance part, which resists the top surface of the electrode; a fixing part is provided in the receiving groove, and the fixing part resists the electrode.

[0054] In one embodiment, two adjacent protection units are connected to each other.

[0055] In one embodiment, the three protection units are integrally formed.

[0056] In one embodiment, the protection unit includes a first cylinder and a second cylinder of different lengths. The first cylinder and the second cylinder are respectively mounted on the electrode. The second cylinder exposes the top of the electrode, and the exposed top of the electrode is used to connect to the protector.

[0057] The present application further proposes a protection component for a compressor, wherein a plurality of electrodes are provided in the compressor, and the protection component comprises:

[0058] A protector, the protector being used to connect to electrodes inside the compressor;

[0059] The protective cover includes a plurality of protective units, the number of the protective units is not less than the number of electrodes, and the plurality of protective units are respectively sleeved on the plurality of electrodes.

[0060] The present application also proposes a compressor, which includes the above-mentioned electrode terminal.

[0061] The present application also provides a refrigeration device, which includes the above-mentioned compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0063] FIG1 is a schematic structural diagram of the electrode terminal electrode and outer cover of the present application;

[0064] FIG2 is a schematic diagram of the structure of the electrode terminal protection sleeve of the present application when it is sleeved on the electrode;

[0065] FIG3 is a schematic diagram showing the structure of two protection units connected by connecting ribs;

[0066] FIG4 is a schematic diagram showing the structure of three protection units connected by connecting ribs;

[0067] FIG5 is a schematic diagram of another structure in which three protection units are connected by connecting ribs;

[0068] FIG6 is a schematic structural diagram of two protection units when they are slidingly connected;

[0069] FIG7 is a schematic diagram showing the structure of three protection units when they are connected in a sliding manner;

[0070] FIG8 is a schematic diagram showing another structure of three protection units in sliding connection;

[0071] FIG9 is a schematic diagram showing a structure of three protection units in sliding connection;

[0072] FIG10 is a schematic structural diagram of two protection units when they are slidably buckled;

[0073] FIG11 is a schematic diagram showing the structure of three protection units when they are slidably buckled;

[0074] FIG12 is another schematic diagram showing the structure of two protection units buckled together;

[0075] FIG13 is another schematic diagram showing the structure of three protection units when buckled;

[0076] FIG14 is a schematic diagram showing the structure of two protection units when magnetically attracted;

[0077] FIG15 is a schematic diagram showing the structure of three protection units when magnetically attracted;

[0078] FIG16 is a schematic structural diagram of two protection units connected by a connector;

[0079] FIG17 is a schematic structural diagram of three protection units connected by connectors;

[0080] FIG18 is a schematic structural diagram of two protection units when they are rotatably connected;

[0081] FIG19 is another schematic diagram showing the structure of two protection units when they are rotatably connected;

[0082] FIG20 is a schematic structural diagram of the electrode terminal protection cover of the present application;

[0083] FIG21 is a schematic structural diagram of the electrode terminal protection cover of the present application from another perspective;

[0084] FIG22 is a structural diagram of the electrode terminal protection cover of the present application from another perspective;

[0085] FIG23 is a schematic diagram of the structure when the electrode terminal is directly connected to the protector;

[0086] FIG24 is a schematic diagram of the structure of the electrode terminal of the present application after being covered with a protective cover and connected to the protector;

[0087] FIG25 is an exploded schematic diagram of the structure of FIG24 ;

[0088] FIG26 is a schematic diagram of the combination of the protection components proposed in this application.

[0089] Description of Figure Numbers:

[0090] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0091] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0092] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0093] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0094] The present application proposes an electrode terminal for use in a compressor; the electrode terminal proposed in the present application can provide electrical connection between the inside and outside of the compressor.

[0095] Referring to Figures 1 and 2 , the compressor has a housing with recessed slots for the electrode terminals. Because the compressor contains a liquid medium such as refrigerant or engine oil, the electrode terminals are typically sealed and secured in the recessed slots. To prevent the refrigerant or engine oil from leaking out of the electrode terminals, the electrode terminals are typically secured in the recessed slots by welding.

[0096] In this application, the electrode terminal includes an outer cover 100 and a plurality of electrodes 200. The electrodes 200 are disposed within the outer cover 100, which is then embedded in a recessed slot on the compressor housing. Generally, the outer cover 100 is circular and made of metal, facilitating welding and securing the outer cover 100 to the recessed slot via fusion. Specifically, the outer cover 100 includes a base plate 110 and a surrounding plate 120 connected to the outer periphery of the base plate 110. Both the base plate 110 and the surrounding plate 120 are made of metal, facilitating the use of fusion to secure or process the entire outer cover 100.

[0097] In this embodiment, the enclosure 120 is integrally formed on the bottom plate 110, that is, the outer cover 100 as a whole can be made by an integral forming process such as stamping; wherein, the joint between the enclosure 120 and the bottom plate 110 is chamfered to ensure that the thickness of the enclosure 120 and the bottom plate 110 are consistent, thereby ensuring the overall structural strength of the outer cover 100; it should be noted that in this embodiment, the bottom plate 110 is set on one side of the enclosure 120. With the bottom plate 110 as a reference, in the enclosure 120, the enclosed area of ​​the enclosure 120 cut by the plane parallel to the bottom plate 110 gradually expands in the direction away from the bottom plate 110, that is, the projection of the enclosure 120 on the plane perpendicular to the bottom plate 110 is similar to a truncated cone, and when viewed from the direction facing the bottom plate 110, the maximum projected area of ​​the enclosure 120 is larger than the projected area of ​​the embedded groove; The arrangement makes it possible that when the outer cover 100 is embedded in the embedding groove, part of the enclosure 120 is stuck outside the embedding groove, and then when the electrode terminal is installed as a whole, the outer cover 100 is not easily removed from the embedding groove due to the influence of gravity on the electrode terminal, thereby facilitating the welding operation of the electrode terminal; further, an embedding ring 140 can be processed on the side of the enclosure 120 away from the bottom plate 110 by a process such as stamping, and the diameter of the embedding ring 140 is larger than the diameter of the embedding groove, so that the outer cover 100 can be installed in the embedding groove in a certain direction with the help of gravity and is not easily removed, thereby facilitating the welding of the outer cover 100; in addition, in order to ensure the structural strength between the enclosure 120 and the embedding ring 140, a chamfer can also be used between the enclosure 120 and the embedding ring 140 to ensure a smooth transition between the two, so that the enclosure 120 and the embedding ring 140 have the same thickness.

[0098] In order to further improve the strength between the enclosure 120 and the base plate 110, a plurality of reinforcing ribs 130 are provided between the base plate 110 and the enclosure 120. The reinforcing ribs 130 are connected between the base plate 110 and the enclosure 120, thereby improving the structural strength between the base plate 110 and the enclosure 120. Specifically, the reinforcing ribs 130 may be strip-shaped, that is, the two ends of the reinforcing ribs 130 are respectively connected to the base plate 110 and the enclosure 120, thereby reducing the possibility of deformation of the base plate 110 and the enclosure 120. Accordingly, in some embodiments, the reinforcing ribs 130 may be plate-shaped; for example, the reinforcing ribs 130 may be arc-shaped. The reinforcing rib 130 may be in the shape of a triangular plate, that is, the arc-shaped side of the reinforcing rib 130 is connected to the enclosure 120, and one side of the reinforcing rib 130 is connected to the bottom plate 110; or the reinforcing rib 130 may be in the shape of a triangular plate, that is, the two sides of the reinforcing rib 130 are connected to the bottom plate 110 and the enclosure 120 respectively; the provision of the reinforcing rib 130 can further improve the connection strength between the enclosure 120 and the bottom plate 110, thereby reducing the possibility of excessive deformation of the outer cover 100 as a whole due to the cooperation between the enclosure 120 and the embedding groove during installation, thereby ensuring the stability of the overall structure and reducing the difficulty of installing the outer cover 100.

[0099] It should be noted that the above only uses the circular shape of the outer cover 100 to illustrate the production and installation of the outer cover 100. The outer cover 100, that is, the specific shape of the projection of the bottom plate 110 on its parallel plane, can be changed according to actual selection and design needs, such as geometric shapes such as rectangle, square, triangle, rhombus and trapezoid. Irregular shapes can also be used, and one-piece molding processing methods such as stamping can complete the processing of complex shapes; the shapes of the enclosure 120, the embedding groove and the embedding ring 140 can all be changed with the change of the shape of the bottom plate 110; in addition, according to actual processing or design requirements, the specific materials of the bottom plate 110, the enclosure 120, the embedding ring 140 and the embedding groove can also be selected. For example, the outer cover 100 is made of an insulating material such as hard plastic to improve the overall insulation performance of the outer cover 100.

[0100] The electrode 200 is arranged on the base plate 110; specifically, the electrode 200 passes through the base plate 110 and is insulated from the base plate 110, that is, the base plate 110 provides support and fixation for the electrode 200 while being insulated from the electrode 200; it should be noted that the number of electrodes 200 can be set according to actual usage requirements; further, according to the number of electrodes 200 designed on the base plate 110, multiple electrode terminals can be set on the compressor casing.

[0101] In this embodiment, the number of electrodes 200 can be one, two, or more. When there are more than one electrode 200, the multiple electrodes 200 can be arranged on the same straight line, or two adjacent electrodes 200 can be on the same straight line. When the outer cover 100 is made of metal, in order to reduce the possibility of electrical conduction between the electrode 200 and the outer cover 100, an insulator 220 is provided between the electrode 200 and the base plate 110. The electrode 200 is electrically connected to the outside world through the insulator 220, that is, the electrode 200 is conductive inside and outside the compressor. The provision of the insulator 220 reduces the possibility of electrical conduction between the electrode 200 and the outer cover 100, that is, reduces the possibility of metal debris adhered to the electrode 200 along with the refrigerant or engine oil conducting electricity to the outer cover 100.

[0102] Accordingly, the insulator 220 is made of insulating material, and in order to cope with the high temperature that may be generated when the electrode 200 is conducting electricity, the insulator 220 is more inclined to be made of glass crystal or ceramic material; for example, the insulator 220 can be made of glass crystal, or the insulator 220 is made of glass crystal and ceramic materials, or the insulator 220 is made of ceramic material; glass crystal and ceramic have excellent insulation and heat resistance properties and are low in price, so the insulator 220 made of glass crystal or ceramic has excellent insulation and heat resistance properties while being relatively low in cost; it should be noted that the insulator 220 can also be made of materials such as heat-resistant plastics to ensure that it has good insulation properties and good heat resistance.

[0103] In this embodiment, in order to reduce the possibility of metal debris coming with the refrigerant or engine oil being placed on the electrode 200, thereby causing a short circuit between the electrodes 200, this embodiment provides an electrode terminal, and a protective cover 300 is provided on the electrode 200; the provision of the protective cover 300 reduces the possibility of metal debris being placed on the electrode 200, thereby reducing the possibility of a short circuit between the electrodes 200, and ensuring the service life of the electrode terminal.

[0104] Specifically, the protective cover 300 includes a plurality of protective units 310 , and the number of the protective units 310 corresponds to the number of the electrodes 200 ; each protective unit 310 is made of insulating material.

[0105] When there is only one electrode 200, the protective cover 300 is a single protective unit 310. It should be noted that the protective unit 310 is mounted on the electrode 200, thereby reducing the possibility of metal debris sticking to the electrode 200. That is, the provision of the protective cover 300 further reduces the possibility of a short circuit between the electrode 200 and the outer cover 100, thereby ensuring the service life of the electrode terminal.

[0106] When there is only one electrode 200 on the electrode terminal, the number of electrode terminals and their distribution locations on the compressor housing can be selected based on the specific design requirements of the compressor, and the compressor is not limited to having only one electrode terminal. For example, in a typical circuit configuration, a compressor will have a ground wire, a live wire, and a neutral wire; therefore, three electrode terminals can be provided on the compressor housing, and each of the three electrode terminals' electrodes 200 is covered with a protective cover 300 (a single protective unit 310), and the three electrode terminals are connected to the ground wire, the live wire, and the neutral wire, respectively.

[0107] When two electrodes 200 are provided on the base plate 110, the number of the protection units 310 is also two; the two protection units 310 together constitute the protection cover 300; wherein, the two protection units 310 can exist independently of each other or as a whole; it should be noted that when two electrodes 200 are provided on the base plate 110, it is possible to choose whether to increase the number of electrode terminals according to actual use needs. The electrode terminal here can be an electrode terminal with two electrodes 200, or it can be an electrode terminal with one electrode 200 mentioned in the above description, and both can be changed and set accordingly according to the specific design requirements of the compressor.

[0108] When the protection unit 310 exists independently, the two protection units 310 are respectively mounted on the two electrodes 200; when refrigerant or engine oil passes through the area where the electrodes 200 are set, the refrigerant or engine oil may carry debris generated by other metal parts of the compressor, such as copper chips in the refrigerant pipeline; and when the metal debris adheres to the protection unit 310, the protection unit 310 will use its insulating properties to prevent the metal debris from directly adhering to the electrode 200, thereby reducing the possibility of a short circuit between the two electrodes 200 due to the conduction of the metal debris.

[0109] In other embodiments of the present application, the two protection units 310 may also be connected to each other; it should be noted that whether the two adjacent protection units 310 are connected and the connection relationship does not affect the isolation effect of the protection unit 310 on metal debris; and the connection of the two adjacent protection units 310 will improve the integrity of the protective cover 300, thereby improving the integrity of the entire electrode terminal, and thus simplifying the production process of the electrode terminal to a certain extent.

[0110] There are many ways to connect two adjacent protection units 310;

[0111] For example, two adjacent protection units 310 are fixedly connected.

[0112] 3 to 5 , in one embodiment of the present application, a connecting rib 410 is provided between two adjacent protection units 310; the number of the connecting ribs 410 may be one or more, and may be specifically selected according to the connection strength requirements between the protection units 310; and the shape of the connecting rib 410 may be a bar, that is, the two ends of the connecting rib 410 are respectively connected to the two protection units 310; the connecting rib 410 may also be made into a plate shape, that is, the opposite sides of the connecting rib 410 are respectively connected to the two protection units 310; in addition, with the front view direction of the connecting rib 410 as a reference, the connecting rib 410 may also be in the shape of a regular shape such as a hexagon, and the two protection units 310 are respectively connected to the opposite sides or both sides of the connecting rib 410.

[0113] It should be noted that the specific shape and quantity settings of the connecting ribs 410 can be selected according to needs; for example again, if the projection of the connecting rib 410 in the front view direction is a regular shape such as a rectangle and a square, it can also be an irregular shape; the number of connecting ribs 410 can be one, two, three or four, etc., which can be selected according to actual needs; and during installation, the two protection units 310 can be installed as a whole, that is, the two protection units 310 are respectively placed on the two electrodes 200 at the same time.

[0114] In another embodiment of the present application, the two protection units 310 are glued to each other when they are respectively mounted on the two electrodes 200; wherein, the two protection units 310 may be pre-glued when they are mounted on the electrodes 200, or they may be glued after the two protection units 310 are mounted on the electrodes 200; it should be noted that there is no restriction on the type of glue used for gluing, as long as it maintains good stability in the refrigerant or engine oil; in addition, hot melt adhesive may also be used to connect the two protection units 310, that is, the two protection units 310 may be glued together in advance using hot melt adhesive.

[0115] When the protection units 310 are made of a thermoplastic material such as rubber or plastic, the inherent properties of the material can be utilized for bonding; that is, heating is used to weld the contact surfaces of the two protection units 310, thereby completing the bonding between the two protection units 310. This bonding method utilizing the inherent properties of the material of the protection units 310 can be completed before or after the protection units 310 are mounted on the electrode 200, depending on the actual production process.

[0116] In another embodiment of the present application, the two protection units 310 are integrally formed, so that the two protection units 310 directly form the protective cover 300, without the need for other structures to establish a connection between the two protection units 310. The dimensions of the protection units 310 and the overall dimensions of the protective cover 300 formed by the two protection units 310 can be designed in advance based on the spacing between the two electrodes 200 located on the same base plate 110. Therefore, when the protective cover 300 is manufactured, the two protection units 310 can be integrally formed according to the pre-determined design dimensions. Specifically, when the protective cover 300 is made of a material such as plastic, the protective cover 300 can be produced using an integral molding process such as injection molding, thereby completing the integral molding arrangement between the two protection units 310.

[0117] For another example, two adjacent protection units 310 are detachably connected.

[0118] 6 to 9 , in one embodiment of the present application, two adjacent protection units 310 are connected by sliding to form a protective cover 300. Specifically, a sliding protrusion 421 may be provided on one side of a protection unit 310 along its length, and a sliding groove 422 may be provided on the other protection unit 310 along its length, and the sliding protrusion 421 and the sliding groove 422 may be matched to complete the connection between the two protection units 310. Further optimization may also be performed on the basis of the sliding protrusion 421 and the sliding groove 422; for example, positioning protrusions 423 may be provided on opposite sides of the sliding protrusion 421. , so that positioning grooves 424 are provided on the opposite side walls of the sliding groove 422, that is, when the sliding protrusion 421 is embedded in the sliding groove 422, the positioning protrusion 423 is also embedded in the positioning groove 424, and the positioning protrusion 423 slides in the positioning groove 424 as the sliding protrusion 421 slides in the sliding groove 422; the positioning protrusion 423 can also be set on one side wall of the sliding groove 422, and the sliding protrusion 421 is provided with a positioning groove 424 that is compatible with the positioning protrusion 423, and when the sliding protrusion 421 slides in the sliding groove 422, the positioning protrusion 423 also slides in the positioning groove 424.

[0119] In addition, the above-mentioned positioning protrusion 423 and positioning groove 424 can be used to further improve the tightness of the connection between the two protection units 310; for example, the positioning protrusion 423 can be interference-fitted with the positioning groove 424; the positioning protrusion 423 and the positioning groove 424 can be respectively arranged on the top of the sliding protrusion 421 and the sliding groove 422, so that as the sliding protrusion 421 slides within the sliding groove 422, the positioning protrusion 423 will gradually embed into the positioning groove 424, thereby completing the interference fit between the two and further improving the tightness of the connection between the two protection units 310. It should be further explained that, with the sliding direction between the protection units 310 as a reference, the cross-sectional area of ​​the positioning groove 424 can be fixed while the cross-sectional area of ​​the positioning protrusion 423 gradually increases in the sliding direction, the cross-sectional area of ​​the positioning protrusion 423 can be fixed while the cross-sectional area of ​​the positioning groove 424 gradually decreases in the sliding direction, and the cross-sectional area of ​​the positioning groove 424 can be smaller than the cross-sectional area of ​​the positioning protrusion 423.

[0120] It should be further explained that the specific number of sliding protrusions 421 and sliding grooves 422, positioning protrusions 423 and positioning grooves 424 can be selected according to factors such as actual installation strength requirements; for example, positioning protrusions 423 are provided on both opposite sides of the sliding protrusion 421, and positioning grooves 424 are provided on both opposite side walls of the sliding groove 422; or two sliding protrusions 421 are provided on one protection unit 310, and two sliding grooves 422 are provided on the other protection unit 310; the number of sliding protrusions 421 can be three, four, or even more, and the number of sliding grooves 422 can be equal to the number of sliding protrusions 421; the number of positioning protrusions 423 can be three, four, or even more, and the number of positioning grooves 424 can also be equal to the number of positioning protrusions 423.

[0121] The number of the sliding protrusions 421 and the number of the sliding grooves 422 are not necessarily equal; for example, one protection unit 310 is provided with only one sliding protrusion 421, while the other protection unit 310 is provided with multiple sliding grooves 422, and the sliding protrusion 421 can be selected to slide into a certain sliding groove 422 according to the relative position between the two electrodes 200; the two can also be interchanged; for example, one protection unit 310 is provided with only one sliding groove 422, while the other protection unit 310 is provided with multiple sliding protrusions 421, and the sliding protrusion 421 can be selected according to the relative position between the two electrodes 200. Select a certain sliding protrusion 421 to slide into the sliding groove 422; in addition, the number of sliding protrusions 421 on one protection unit 310 can be set to two, and the number of sliding grooves 422 on the other protection unit 310 can be set to three, and the spacing between the two sliding protrusions 421 is equal to the spacing between the two adjacent sliding grooves 422, that is, the two sliding protrusions 421 can choose to slide into any two adjacent sliding grooves 422; similarly, the number of sliding protrusions 421 can be three, four, or even more; the number of sliding grooves 422 can also be two, three, four, or even more.

[0122] According to the above description, the cooperation between the positioning protrusion 423 and the positioning groove 424 can also be one to many, many to one, or even many to many; for example, one positioning protrusion 423 is matched with two, three, or even more positioning grooves 424; one positioning groove 424 is matched with two, three, or even more positioning protrusions 423; multiple positioning grooves 424 are matched with multiple positioning protrusions 423, and the number of positioning grooves 424 and positioning protrusions 423 is not necessarily the same.

[0123] It should be further explained that if the protection unit 310 is made of a relatively soft material, that is, after the protection unit 310 is sleeved on the electrode 200, it can still be rotated within a certain range with the electrode 200 as the axis, and the length direction of the above-mentioned sliding protrusion 421 and the sliding groove 422, the positioning protrusion 423 and the positioning groove 424 can be perpendicular to the length direction of the protection unit 310. At this time, when installing, the protection unit 310 is first sleeved on the electrode 200, and then slightly rotated so that the sliding protrusion 421 cooperates with the sliding groove 422, and the positioning protrusion 423 and the positioning groove 424 are aligned. The movable protrusion 423 cooperates with the positioning groove 424; or the deformation ability of the protection unit 310 is utilized to make the length direction of the above-mentioned sliding protrusion 421 and the sliding groove 422, and the positioning protrusion 423 and the positioning groove 424 inclined to the length direction of the protection unit 310, that is, when the protection unit 310 is sleeved on the electrode 200, the protection unit 310 is first deformed, so that the movable protrusion cooperates with the sliding groove 422, and the positioning protrusion 423 cooperates with the positioning groove 424, thereby completing the connection between the two protection units 310.

[0124] 10 to 13 , in another embodiment of the present application, two protection units 310 are buckled together to form a protective sleeve 300; specifically, a buckle groove 431 may be formed recessed on one protection unit 310, and a buckle portion 432 may be protruded on the other protection unit 310. When the two protection units 310 are respectively sleeved on the electrode 200, the buckle portion 432 will be embedded in the buckle groove 431. It should be noted that if there is a high connection strength requirement between the two protection units 310, the buckle portion 432 should be interference fit with the buckle groove 431 to ensure the connection stability between the two protection units 310. If the connection strength requirement between the two protection units 310 is low, the buckle portion 432 may be adapted to the buckle groove 431, or the buckle portion 432 may be able to swing in the buckle groove 431 after being matched with the buckle groove 431. This may depend on actual use and design requirements.

[0125] There are other implementation forms of the buckling of the two protection units 310; for example, one side of a protection unit 310 is extended and bent to form a buckling body 433, and the other protection unit 310 is entirely embedded in the buckling body 433, which can be understood as one protection unit 310 being buckled to the portion formed by the extension of the other protection unit 310; for another example, both protection units 310 are extended to form a buckling portion 432, but the buckling portion 432 of one protection unit 310 is provided with a buckling groove 434, and the buckling portion 432 of the other protection unit 310 is provided with a buckling protrusion 435. When the two protection units 310 are respectively mounted on the two electrodes 200, the buckling protrusion 435 will cooperate with the buckling groove 434, thereby completing the connection between the two protection units 310; and the buckling portion 432 The specific setting of 32 can be determined according to actual usage requirements, that is, the number of snap-fit ​​grooves 434 and the number of snap-fit ​​protrusions 435 can be changed according to actual usage requirements, and the number of the two is not required to be equal; for example, one snap-fit ​​groove 434 corresponds to multiple snap-fit ​​protrusions 435, or one snap-fit ​​protrusion 435 corresponds to multiple snap-fit ​​grooves 434, or three snap-fit ​​protrusions 435 correspond to five snap-fit ​​grooves 434, and vice versa; however, it should be noted that since there is a possibility that multiple snap-fit ​​grooves 434 correspond to multiple snap-fit ​​protrusions 435, and the number of the two is not equal, it is necessary to reasonably set the spacing between the snap-fit ​​grooves 434 and the snap-fit ​​grooves 434, and the snap-fit ​​protrusions 435 and the snap-fit ​​protrusions 435 to avoid deviations, which may cause the snap-fit ​​between the two protection units 310 to be unable to be completed.

[0126] It is worth noting that, when multiple snap-fit ​​grooves 434 correspond to multiple snap-fit ​​protrusions 435, there are a variety of design possibilities for the spacing between the snap-fit ​​grooves 434 and the snap-fit ​​grooves 434, and between the snap-fit ​​protrusions 435 and the snap-fit ​​protrusions 435; for example, 5 snap-fit ​​grooves 434 correspond to 2 snap-fit ​​protrusions 435. At this time, when both snap-fit ​​protrusions 435 can be snapped into correspondence with the snap-fit ​​grooves 434, the total length of the two snap-fit ​​protrusions 435 and the spacing between them can be made equal to the total length of the three snap-fit ​​grooves 434 and the spacing between them, that is, when the two snap-fit ​​protrusions 435 are combined with the snap-fit ​​grooves 434, there must be a snap-fit ​​groove 434 between the two snap-fit ​​protrusions 435. The matching of the snap-fit ​​protrusions 435 and the snap-fit ​​grooves 434 can be selected according to the actual arrangement of the electrode 200.

[0127] 14 and 15 , in another embodiment of the present application, the two protection units 310 can be connected by magnetic attraction; specifically, magnets 450 can be respectively provided on the two protection units 310, and the two magnets 450 can attract each other when the two protection units 310 are respectively mounted on the electrodes 200. Thus, when the two protection units 310 are respectively mounted on the two electrodes 200, the two magnets 450 will attract each other, so that the two protection units 310 are tightly fitted together under the influence of magnetic force, thereby completing the connection between the two protection units 310.

[0128] Accordingly, one or more magnets 450 can be provided on the protection unit 310, and the magnetic poles of each magnet 450 can be set according to actual use needs; for example, two protection units 310 are each provided with two magnets 450, and the two magnets 450 on a single protection unit 310 have opposite magnetic poles, while the magnetic poles of the magnets 450 on the two protection units 310 correspond one to one; for a simple example, a magnet 450 is provided at each of the upper and lower ends of a protection unit 310, the magnet 450 at the upper end is the s pole, and the magnet 450 at the lower end is the n pole; and the magnets 450 are also provided at the upper and lower ends of the other protection unit 310. 0, but the magnet 450 at the upper end of this protection unit 310 is the n pole, and the magnet 450 at the lower end is the s pole. Therefore, when the two protection units 310 are close to each other, they will be tightly attached together under the action of the magnet 450 and cannot be reversed. For another example, multiple magnets 450 can be set on one protection unit 310, and multiple magnets 450 can also be set on the other protection unit 310. The number of the two is not necessarily equal, but the magnets 450 between the two are all of opposite poles, so that they can attract each other. The corresponding position between each magnet 450 can be selected according to actual use requirements to complete the connection between the protection units 310.

[0129] 16 and 17 , in another embodiment of the present application, the two protection units 310 may be connected by other additional connecting members 440; for example, an I-shaped connecting member 440 is provided between the two protection units 310, and the connecting member 440 has a columnar body, with mounting grooves provided on opposite sides of the body to form an I-shape; and the two protection units 310 are respectively embedded in the two mounting grooves, thereby completing the connection of the two protection units 310.

[0130] It should be noted that the setting of the connecting member 440 is not limited to the above-mentioned form; the connecting member 440 can be a connecting ring, and a connecting groove for the connecting ring to be embedded can be provided on the outer side of the two protection units 310. The connecting ring itself has a certain elasticity, so that the connecting ring can be sleeved on the two protection units 310, and then the elasticity of the connecting ring itself is used to complete the connection of the two protection units 310; the connecting member 440 can also be a connecting rod, and a connecting groove for the end of the connecting rod to be embedded is provided on the outer side of the two protection units 310. The connecting rod is embedded in the connecting groove, thereby completing the connection of the two protection units 310.

[0131] For another example, two adjacent protection units 310 are movably connected.

[0132] 18 and 19 , in one embodiment of the present application, the two protection units 310 are rotationally connected; for example, a rotation groove 461 is provided on one protection unit 310, and a rotation shaft 462 is provided on the other protection unit 310. When the two protection units 310 are sleeved on the electrode 200, the rotation shaft 462 is inserted into the rotation groove 461, and the rotation shaft 462 can rotate in the rotation groove 461, thereby completing the rotation connection between the two protection units 310. It should be noted that, in some extremely special cases, hinges can be used to complete the rotation connection of the two protection units 310, but the hinges are generally made of insulating material.

[0133] In addition, in addition to utilizing the cooperation between the rotating shaft 462 and the rotating groove 461 to complete the rotational connection between the two protection units 310, other forms can also be used to complete the relative rotation between the two protection units 310; for example, a rotation groove 461 is formed by extending from the outer side of the protection unit 310, and the other protection unit 310 is rotationally connected in the rotation groove 461, thereby completing the connection between the two protection units 310.

[0134] On the basis of the above, when the number of electrodes 200 is three or more, the number of protection units 310 possessed by the protective cover 300 is correspondingly three or more; the three or more protection units 310 can adopt the connection method provided in the above description, but corresponding changes can be made as the number of protection units 310 increases. The following is a specific example using three protection units 310 as an example.

[0135] First, when the three electrodes 200 are arranged on the same straight line:

[0136] 3 to 5 , if the three protection units 310 are fixedly connected, a connecting rib 410 may be provided between two adjacent protection units 310. The number of the connecting ribs 410 may be one or more, and may be selected based on the connection strength requirements between the two adjacent protection units 310. The connecting rib 410 may be in the shape of a bar, i.e., both ends of the connecting rib 410 are connected to the two adjacent protection units 310 respectively. The connecting rib 410 may also be in the shape of a plate, i.e., the opposite sides of the connecting rib 410 are connected to the two adjacent protection units 310 respectively. The front-view direction of the connecting rib 410 is used as a reference. The connecting rib 410 can also be in the shape of a regular shape such as a hexagon, and the two adjacent protection units 310 are respectively connected to the opposite sides or both sides of the connecting rib 410; the projection of the connecting rib 410 in the front-view direction can be a regular shape such as a rectangle and a square, or an irregular shape; the number of connecting ribs 410 can be one, two, three or four, etc., which can be selected according to actual conditions; and during installation, the three protection units 310 can be installed as a whole, that is, the three protection units 310 are respectively placed on the three electrodes 200 at the same time. The protection units 310 can also be connected by gluing, that is, two adjacent protection units 310 are connected by gluing; wherein, the two adjacent protection units 310 can be pre-glued when they are sleeved on the electrode 200, or they can be glued after the two adjacent protection units 310 are sleeved on the electrode 200; it should be noted that there is no restriction on the type of glue used for gluing, as long as it maintains good stability in the refrigerant or engine oil; in addition, hot melt adhesive can also be used to connect the two protection units 310, that is, hot melt adhesive can be used in advance to stick the two adjacent protection units 310 together; and when the protection unit 310 uses a thermoplastic material such as rubber or plastic, the properties of the material itself can also be used for gluing; that is, heating is used to weld the contact surfaces of the two adjacent protection units 310, thereby completing the gluing between the two adjacent protection units 310.

[0137] In the present application, for example, the three protection units 310 are integrally formed into the protective cover 300 as a whole, that is, the three protection units 310 are directly integrally formed and fixed to each other, and there is no need to use other structures to establish a connection relationship between the three protection units 310; similarly, the size of a single protection unit 310 and the size of the protective cover 300 as a whole can be designed in advance according to the spacing between the three electrodes 200, and then the protective cover 300 is produced and processed using an integrated molding process; for example, when the protective cover 300 is made of plastic, the injection molding process is used to produce the protective cover 300, thereby obtaining an integrated protective cover 300.

[0138] 6 to 9, when the three protection units 310 are detachably connected, referring to the above description of the sliding connection between the two adjacent protection units 310, a sliding groove 422 and a sliding protrusion 421 can be respectively provided on opposite sides of the protection unit 310, that is, the sliding groove 422 of the protection unit 310 is adapted to the sliding protrusion 421 of one protection unit 310, and the sliding protrusion 421 of the protection unit 310 is adapted to the sliding groove 422 of another protection unit 310, thereby completing the sliding connection between the three protection units 310; and according to the above description of the sliding connection between the two adjacent protection units 310, the positioning protrusion 423 and the positioning groove The setting of 424 can also be modified accordingly; for example, a positioning groove 424 is provided in the sliding groove 422 of the protection unit 310, and a positioning protrusion 423 is provided on the sliding protrusion 421 of the protection unit 310. The positioning protrusion 423 of one protection unit 310 is embedded in the positioning groove 424 of another protection unit 310, and then the positioning protrusion 423 of another protection unit 310 is embedded in the positioning groove 424 of the protection unit 310; the specific matching relationship, position, quantity and shape of the sliding protrusion 421, sliding groove 422, positioning protrusion 423 and positioning groove 424 can all refer to the above description of the sliding connection between two adjacent protection units 310.

[0139] 10 to 13 , and referring to the above description of the buckling between the two protection units 310, a buckling groove 431 and a buckling portion 432 may be provided on opposite sides of the protection unit 310, respectively. For example, when the buckling portion 432 of one protection unit 310 is buckled into the buckling groove 431 of another protection unit 310, the buckling portion 432 of another protection unit 310 is buckled into the buckling groove 431 of the protection unit 310. Alternatively, the opposite sides of one of the three protection units 310 may be extended and bent to form a buckling body 433, and the other two protection units 310 may be respectively embedded in the buckling bodies 433 on both sides of the protection unit 310. 33; two of the three protection units 310 may be formed with a snap-fitting body 433, and one protection unit 310 with a snap-fitting body 433 may be embedded in the snap-fitting body 433 of another protection unit 310, and another protection unit 310 may be embedded in the snap-fitting body 433 of the protection unit 310; in addition, a snap-fitting portion 432 may be extended to form on the protection unit 310, and a snap-fitting groove 434 or a snap-fitting protrusion 435 may be formed on the snap-fitting portion 432 to complete the snap-fitting; the number and corresponding settings of the snap-fitting grooves 434 and the snap-fitting protrusion 435 may refer to the above description of the snap-fitting between the two protection units 310.

[0140] 14 and 15 , and referring to the above description regarding the magnetic attraction between the two protection units 310, magnets 450 may be provided on opposite sides of each protection unit 310, and the magnetic poles of the magnets 450 on both sides are oriented in the same direction, that is, one magnet 450 is oriented toward the outside with the n pole, and the other magnet 450 is oriented toward the outside with the s pole. Since the two magnets 450 are located on opposite sides of the protection unit 310, when the magnetic poles of the two magnets 450 are oriented in the same direction, the magnetic poles displayed by the two magnets 450 on the opposite sides of the protection unit 310 are opposite; thus, the three protection units 310 can be combined in pairs to complete the connection; and the specific number and position of the magnets 450 on each protection unit 310 can be reasonably changed with reference to the above description regarding the magnetic attraction between the two protection units 310.

[0141] 16 and 17 , and referring to the above description of the connector 440 , two connectors 440 may be provided between the three protection units 310 , that is, an “I”-shaped connector 440 is provided between two adjacent protection units 310 , and the connector 440 has a columnar body with mounting grooves on opposite sides of the body to form an “I” shape; the two protection units 310 are respectively embedded in the two mounting grooves; and it should be noted that, among the three protection units 310, the protection unit 310 located in the middle is simultaneously embedded in the mounting grooves of the two connectors 440 , that is, the mounting grooves of the two connectors 440 relative to each other will surround the protection unit 310 located in the middle, thereby completing the connection of the three protection units 310 .

[0142] The specific setting of the connecting member 440 is also not limited to the above form. The connecting member 440 can have three installation grooves, and the three protection units 310 are respectively and simultaneously embedded in the three installation grooves of the connecting member 440; the connecting member 440 can also be a connecting ring, and the outer sides of the three protection units 310 can all be provided with connecting grooves for the connecting rings to be embedded. The connecting ring itself has a certain elasticity, so that the connecting ring can be sleeved on the three protection units 310, and then the elasticity of the connecting ring itself is used to complete the connection of the three protection units 310; the connecting member 440 can also be a connecting rod, and the outer sides of the three protection units 310 all have connecting grooves for the ends of the connecting rods to be embedded. The two connecting rods are respectively embedded in the connecting grooves on the two adjacent protection units 310, thereby completing the connection of the three protection units 310.

[0143] Referring to FIGS. 18 and 19, when the three protection units 310 are movably connected, referring to the above description regarding the rotational connection between two protection units 310, rotation grooves 461 and rotation shafts 462 are respectively provided on both sides of each protection unit 310. When the rotation shaft 462 of one protection unit 310 is inserted into the rotation groove 461 of another protection unit 310, the rotation shaft 462 of yet another protection unit 310 will be inserted into the rotation groove 461 of this protection unit 310, thus completing the rotational connection between the three protection units 310; correspondingly, it is also possible to simultaneously provide rotation shafts 462 on both sides of the middle protection unit 310, and rotation grooves 461 are provided on the sides of the other two protection units 310 facing this protection unit 310; it is also possible to simultaneously provide rotation grooves 461 on both sides of the middle protection unit 310, and rotation shafts 462 are provided on the sides of the other two protection units 310 facing this protection unit 310, all of which can complete the rotational connection between the three protection units 310.

[0144] It should be noted that other forms can also be used to complete the relative rotation between the three protection units 310; for example, rotation grooves 461 are formed by extending from the opposite sides of the middle protection unit 310, and the other two protection units 310 are respectively rotatably connected in the two rotation grooves 461, thus completing the rotational connection between the three protection units 310.

[0145] The above are examples of the connection methods between the protection units 310 when the number of electrodes 200 is three. Without violating the principle, corresponding changes can be made to each example to complete the connection between the protection units 310, which will not be elaborated in this embodiment, but the changes not recorded should also be regarded as within the scope recorded and disclosed in this embodiment; in addition, when the number of electrodes 200 is greater than three and multiple electrodes 200 are arranged on the same straight line, the connection methods between the protection units 310 can be correspondingly changed by referring to the above examples. Without violating and changing the relevant principles, each change should also be regarded as within the scope recorded and disclosed in this embodiment.

[0146] Secondly, when the three electrodes 200 are distributed in a triangle, or when the three electrodes 200 are arranged in a "pin" shape;

[0147] If the three protection units 310 are fixedly connected, then the three protection units 310 are adjacent to each other. Referring to the above description of the fixed connection between the three protection units 310, referring to Figures 3 to 5, first, a connecting rib 410 can be set between two adjacent protection units 310. The number of connecting ribs 410 can be one or more, and can be specifically selected according to the connection strength requirements between the two adjacent protection units 310; and the shape of the connecting rib 410 can be a bar, that is, the two ends of the connecting rib 410 are respectively connected to the two adjacent protection units 310; the connecting rib 410 can also be made into a plate shape, that is, the opposite sides of the connecting rib 410 are respectively connected to the two adjacent protection units 310; in addition, with the front view direction of the connecting rib 410 as a reference, the connecting rib 410 can also be in the shape of a regular figure such as a hexagon, and the two adjacent protection units 310 are respectively connected to the opposite sides or both sides of the connecting rib 410; the projection of the connecting rib 410 in the front view direction can be a regular figure such as a rectangle and a square The number of the connecting ribs 410 can be one, two, three or four, etc., which can be selected according to actual conditions. When installing, the three protection units 310 can be installed as a whole, that is, the three protection units 310 are respectively mounted on the three electrodes 200 at the same time. In combination with the above description, the projection of the connecting rib 410 can also be a regular shape such as a triangle or a pentagon, that is, the connecting rib 410 connects the three protection units 310 at the same time. For example, the connecting rib 410 can be in the shape of a triangular plate, a triangular pyramid, or a triangular prism. When the connecting rib 410 is in the shape of a triangular plate, the connecting rib 410 has three sides, which are respectively connected to the outer walls of the three protection units 310. When the connecting rib 410 is in the shape of a triangular pyramid, the three protection units 310 can be respectively connected to the three sides of the bottom surface of the connecting rib 410. When the connecting rib 410 is in the shape of a triangular prism, the connecting rib 410 has three side walls, and the three protection units 310 are respectively connected to the three side walls. The above is an example of the connecting rib 410.

[0148] Alternatively, the three protection units 310 can be connected by gluing, that is, two adjacent protection units 310 are connected by gluing; wherein, the two adjacent protection units 310 can be pre-glued when they are sleeved on the electrode 200, or they can be glued after the two adjacent protection units 310 are sleeved on the electrode 200; it should be noted that there is no restriction on the type of glue used for gluing, as long as it maintains good stability in the refrigerant or engine oil; in addition, hot melt adhesive can also be used to connect the two protection units 310, that is, hot melt adhesive can be used in advance to stick the two adjacent protection units 310 together; and when the protection unit 310 uses a thermoplastic material such as rubber or plastic, the properties of the material itself can also be used for gluing; that is, heating is used to weld the contact surfaces of the two adjacent protection units 310, thereby completing the gluing between the two adjacent protection units 310; and it should be noted that the shape of the protection unit 310 can be reasonably set so that the three protection units 310 form a whole after connection.

[0149] In the present application, the three protection units 310 can be integrally formed into the protective cover 300 as a whole, that is, the three protection units 310 are directly integrally formed and fixed to each other, and there is no need to use other structures to establish a connection relationship between the three protection units 310; it should be noted that when the three electrodes 200 are arranged in a triangle, using an integral molding method to make the protective cover 300 is a better solution, which can effectively reduce the assembly steps and assembly difficulty.

[0150] When the three protection units 310 are detachably connected, referring to FIG6 to FIG9 and the above description of the sliding connection in the three protection units 310, considering the limitation on the overall shape of the protection unit 310 brought about by the arrangement of the three electrodes 200, the protection unit 310 can be first planned to be a solid with two sides, such as a triangular prism, a quadrangular prism, a pentagonal prism or other polyhedrons, or a solid of other shapes; and a sliding groove 422 and a sliding protrusion 421 are respectively provided on the adjacent sides of one protection unit 310 and the other two protection units 310, that is, the protection unit 310 The sliding groove 422 of 10 is adapted to the sliding protrusion 421 of one protection unit 310, and the sliding protrusion 421 of the protection unit 310 is adapted to the sliding groove 422 of another protection unit 310, thereby completing the sliding connection between the three protection units 310; and according to the above description of the sliding connection in the three protection units 310, the settings of the positioning protrusion 423 and the positioning groove 424 can also be modified accordingly; for example, the positioning groove 424 is provided in the sliding groove 422 of the protection unit 310, and the sliding protrusion 421 of the protection unit 310 is adapted to the sliding groove 422 of the protection unit 310. 1 is provided with a positioning protrusion 423, the positioning protrusion 423 of one protection unit 310 is embedded in the positioning groove 424 of another protection unit 310, and then the positioning protrusion 423 of another protection unit 310 is embedded in the positioning groove 424 of the protection unit 310; the specific matching relationship, position, number and shape of the sliding protrusion 421, the sliding groove 422, the positioning protrusion 423 and the positioning groove 424 can refer to the above description of the sliding connection in the three protection units 310; it should be noted that, further considering the three electrodes 200 The arrangement may affect the overall shape of the protection unit 310. For example, one protection unit 310 may have only a sliding groove 422, while the other two protection units 310 may have sliding protrusions 421 on their adjacent sides. Conversely, the positioning protrusions 423 and the positioning grooves 424 may be arranged so that one is arranged on one protection unit 310 and the other is arranged on the other two protection units 310. Furthermore, they may be arranged separately to form a variety of combinations, and a variety of changes may be made without changing the principle or violating common sense.

[0151] With reference to the above description of the buckling between the three protection units 310, in combination with Figures 10 to 13, a buckling groove 431 and a buckling portion 432 can be respectively provided on the two sides adjacent to one protection unit 310 and the other two protection units 310; for example, when the buckling portion 432 of one protection unit 310 is buckled into the buckling groove 431 of another protection unit 310, the buckling portion 432 of another protection unit 310 is buckled into the buckling groove 431 of the protection unit 310; one of the three protection units 310 can also be extended and bent on the two sides adjacent to the other two protection units 310 to form a buckling body 433, and the other two protection units 310 are respectively embedded in the protection unit 310. The buckling body 433 on both sides of the unit 310; two of the three protection units 310 may be formed with a buckling body 433, and the other protection unit 310 may be embedded in the buckling body 433 of the two protection units 310 at the same time; in addition, a buckling portion 432 may be extended to form on the protection unit 310, and a buckling groove 434 or a buckling protrusion 435 may be formed on the buckling portion 432 to complete the buckling; further taking into account the influence of the arrangement of the three electrodes 200 on the overall shape of the protection unit 310, the number and corresponding settings of the buckling grooves 434 and the buckling protrusions 435 can be changed in many ways without changing the principle and violating common sense.

[0152] Referring again to the above description of the magnetic attraction between the three protection units 310, combined with Figures 14 and 15, magnets 450 can be provided on both sides of each protection unit 310 adjacent to the other two protection units 310, and the magnetic poles of the magnets 450 on both sides are opposite to each other, that is, one magnet 450 faces the n pole outward, and the other magnet 450 faces the s pole outward. Since the two magnets 450 are located on both sides of the protection unit 310, the three protection units 310 can be combined in pairs to complete the connection; and the specific number and position of the magnets 450 on each protection unit 310 can be reasonably changed with reference to the above description of the magnetic attraction between the three protection units 310.

[0153] Referring again to the above description of the connector 440, in combination with Figures 16 and 17, three connectors 440 can be set between the three protection units 310, that is, an "I"-shaped connector 440 is set between two adjacent protection units 310, and the connector 440 has a columnar body, and mounting grooves are opened on opposite sides of the body to form an "I" shape; the two protection units 310 are respectively embedded in the two mounting grooves; and it should be noted that, considering the impact of the arrangement of the three electrodes 200 on the overall shape of the protection unit 310, the three protection units 310 are all embedded in the mounting grooves of the two connectors 440 at the same time, that is, the relative mounting grooves of the two connectors 440 will surround the protection unit 310 located in the middle, thereby completing the connection of the three protection units 310.

[0154] The specific setting of the connecting member 440 is also not limited to the above form. The connecting member 440 can have three installation grooves, and the three protection units 310 are respectively and simultaneously embedded in the three installation grooves of the connecting member 440; the connecting member 440 can also be a connecting ring, and the outer sides of the three protection units 310 can all be provided with connecting grooves for the connecting rings to be embedded. The connecting ring itself has a certain elasticity, so that the connecting ring can be sleeved on the three protection units 310, and then the elasticity of the connecting ring itself is used to complete the connection of the three protection units 310; the connecting member 440 can also be a connecting rod, and the outer sides of the three protection units 310 all have connecting grooves for the ends of the connecting rods to be embedded. The two connecting rods are respectively embedded in the connecting grooves on the two adjacent protection units 310, thereby completing the connection of the three protection units 310.

[0155] In addition, when the three protection units 310 are movably connected, referring to the above description of the rotational connection between the three protection units 310, combined with Figures 18 and 19, each protection unit 310 is provided with a rotation groove 461 and a rotation shaft 462 on both sides adjacent to the other protection units 310. When the rotation shaft 462 of one protection unit 310 is embedded in the rotation groove 461 of another protection unit 310, the rotation shaft 462 of another protection unit 310 will be embedded in the rotation groove 461 of the protection unit 310, thereby completing the rotational connection between the three protection units 310; considering the influence of the arrangement of the three electrodes 200 on the overall shape of the protection unit 310, the rotation range between the three protection units 310 is extremely limited. Correspondingly, a protection unit 310 may be provided with a rotating shaft 462 on both sides, while the other two protection units 310 are provided with a rotating groove 461 on the side facing the protection unit 310; or a protection unit 310 may be provided with a rotating groove 461 on both sides, while the other two protection units 310 are provided with a rotating shaft 462 on the side facing the protection unit 310, both of which can complete the rotational connection between the three protection units 310.

[0156] It should be noted that other forms can also be used to complete the relative rotation between the three protection units 310; for example, a rotation groove 461 is formed by extending from the opposite sides of a protection unit 310, and the other two protection units 310 are respectively rotatably connected in the two rotation grooves 461, thereby completing the rotation connection between the three protection units 310.

[0157] The above are examples of the connection methods between the protection units 310 when the number of electrodes 200 is three. Without violating the principles, each example can be changed accordingly to complete the connection between the protection units 310. This embodiment will not be repeated, but the unrecorded changes should also be regarded as the scope recorded and disclosed in this embodiment; in addition, when the number of electrodes 200 is greater than three and multiple electrodes 200 are arranged in other shapes or styles, the connection methods between the protection units 310 can be changed accordingly with reference to the above examples. Without violating or changing the relevant principles, each change should also be regarded as the scope recorded and disclosed in this embodiment.

[0158] 20 to 25 , in the embodiment of the present application, the protection unit 310 is formed with a receiving groove 311 therethrough. The receiving groove 311 is used to accommodate the electrode 200. The cross-section of the receiving groove 311 can be a regular shape, such as a polygon such as a triangle or rectangle, or a variety of irregular shapes can be designed according to actual needs. The protection unit 310 is mounted on the electrode 200 using the receiving groove 311, thereby protecting the electrode 200 and reducing the possibility of metal debris adhering to the electrode 200 and causing a short circuit between the electrode 200 and the outer cover 100, or between the electrodes 200. In addition to being directly connected to the wire 500, the electrode 200 in the compressor may also be connected to a protector 600. The protector 600 will reduce the possibility of overload in the circuit of the compressor. The installation of the protector 600 requires that the electrode 200 has a certain length. Therefore, the protection unit 310 includes a first cylinder 320 and a second cylinder 330 of different lengths; the length of the first cylinder 320 is greater than that of the second cylinder 330, and the first cylinder 320 will completely accommodate the electrode 200 in the accommodating groove 311, further reducing the possibility of exposure of the electrode 200; the second cylinder 330 will expose the top of the electrode 200, that is, the protector 600 is connected to the electrode 200 with the second cylinder 330.

[0159] It should be noted that, in other cases, the lengths of the protection units 310 may also be the same; in combination with the above description of the first cylinder 320 and the second cylinder 330, the equal lengths of the protection units 310 can be approximately understood as the lengths of the protection units 310 being approximately equal to the length of the first cylinder 320 or the length of the second cylinder 330 when they are equal, and the specific lengths of the protection units 310 may vary according to factors such as the length of the electrode 200 and design requirements; when the lengths of the protection units 310 are the same, it can also effectively reduce the possibility of metal debris adhering to the electrode 200 along with the refrigerant or engine oil, thereby reducing the possibility of short circuits between the electrodes 200 and 200.

[0160] Taking the case where there are three electrodes 200 and the three electrodes 200 are arranged in a triangle as an example; the protector 600 is generally only provided with one, that is, the number of the second cylinder 330 is one, and the other two electrodes 200 are each provided with a protection unit 310 which is the first cylinder 320, and the connection method between the second cylinder 330 and the two first cylinders 320 can refer to the above description of the connection method of the three protection units 310. In this embodiment, for example, the three protection units 310 are integrally formed.

[0161] However, it should be noted that when the electrode 200 needs to be connected to the protector 600, the protection unit 310 uses the second cylinder 330, and in order to facilitate the connection between the protector 600 and the electrode 200, the exposed length of the top of the electrode 200 with the second cylinder 330 is not less than 5 mm; it should be noted that the exposed length of the top of the electrode 200 refers to the length between the top surface of the electrode 200 and the top of the second cylinder 330; if the electrode 200 is connected to a general circuit device such as an electric wire 500, the first cylinder 320 can be used. Whether the second cylinder 330 is used on the electrode 200 is only related to whether the protector 600 is connected to the electrode 200, and has nothing to do with the number of electrodes 200.

[0162] Considering that high temperatures are generated when the outer cover 100 is secured to the compressor housing, and that these temperatures are generally higher than those generated when the electrodes 200 are energized, an isolation gap of at least 0.1 mm is provided between the protective cover 300 and the enclosure 120 to prevent damage to the entire protective cover 300. In other words, the gap between each protective unit 310 and the enclosure 120 is at least 0.1 mm. Furthermore, the reinforcing ribs 130 disposed between the base plate 110 and the enclosure 120 also prevent direct contact between the protective cover 300 and the base plate 110, further reducing the possibility of damage to the protective cover 300 due to high temperatures.

[0163] To facilitate connection between the electrode 200 and circuit components such as the wire 500 or the protector 600, the electrode 200 is provided with an electrode sheet. The wire 500 or the protector 600 is provided with a corresponding plug-in terminal 510. During connection, the electrode 200 is inserted into the plug-in terminal 510. Accordingly, in the first barrel 320, to reduce the possibility of short circuits caused by metal debris sticking to the electrode 200, the electrode 200 is completely enclosed within the receiving groove 311. In the second barrel 330, the electrode 200, along with the end of the electrode 200, passes through the receiving groove 311 to connect to the protector 600. Because the protector 600 is relatively large, a clearance 321 is provided between the two first barrels 320 adjacent to the second barrel 330 to facilitate installation of the protector 600. This facilitates installation of the protector 600 and reduces contact between the protector 600 and the first barrel 320.

[0164] In order to reduce the possibility of the electrode 200 being exposed in the first cylinder 320, that is, to ensure that the electrode 200 is completely covered in the accommodating groove 311, a resistance portion 322 is formed on the inner wall of the accommodating groove 311 of the first cylinder 320. The resistance portion 322 is in conflict with the top surface of the electrode 200, thereby ensuring that the electrode 200 is completely set in the accommodating groove 311; and in order to prevent the resistance portion 322 from affecting the connection between the electrode 200 and the plug-in terminal 510, the resistance portion 322 only conflicts with part of the top surface of the electrode 200, thereby reducing the possibility of the resistance portion 322 interfering with the connection between the electrode 200 and the plug-in terminal 510. In addition, in order to facilitate the installation of the wire 500, a wire groove 324 is opened on the end of the first cylinder 320, and the wire groove 324 is used to accommodate the wire 500; in order to facilitate the connection between the plug terminal 510 and the electrode 200, a groove 323 is also opened on the top of the first cylinder 320. The setting of the groove 323 provides space for the connection between the plug terminal 510 and the electrode 200, thereby improving the convenience of the overall structure during installation.

[0165] In order to fix the protection unit 310 on the electrode 200, a fixing part 312 is provided in the accommodating groove 311 of the first cylinder 320 and the second cylinder 330. The fixing part 312 will interfere with the electrode 200, thereby fixing the protection unit 310 on the electrode 200, reducing the possibility of the protection unit 310 falling off from the electrode 200, and thus ensuring the protective effect of the protection unit 310 on the electrode 200; it should be noted that when the protector 600 is connected to the electrode 200, the second cylinder 330 can be stably fixed on the electrode 200 with the help of the protector 600 and the electrode 200, and the two first cylinders 320 connected to the second cylinder 330 are also stably fixed on the electrode 200. The setting of the fixing part 312 further reduces the possibility of the protective cover 300 as a whole sliding on the electrode 200. Furthermore, in order to improve the fixing effect of the fixing portion 312, a notch groove is provided on the fixing portion 312, and the electrode 200 will conflict with the groove wall of the arc-shaped notch groove 313 to complete the fixation; in the present embodiment, the electrode 200 is cylindrical, and in order to make the notch groove adapt to the outer peripheral wall of the electrode 200, the cross-section of the notch groove is arc-shaped; when the electrode 200 is a prism such as a triangular prism, a quadrangular prism or a pentagonal prism or other regular and irregular shapes, the cross-sectional shape of the notch groove may also change accordingly; for example, when the electrode 200 is a triangular prism, the cross-sectional shape of the notch groove may be angular; when the electrode 200 is a quadrangular prism, the cross-sectional shape of the notch groove may be angular or rectangular; the shape of the notch groove may change according to the specific shape of the electrode 200, and it can fit with the electrode 200 to improve the fixing effect of the fixing portion 312 on the electrode 200.

[0166] The electrode 200 is provided with an electrode 200 sheet, that is, after the overall structure is installed, the electrode 200 sheet and / or the plug-in terminal 510 directly conflicts with the groove wall of the accommodating groove 311, and the electrode 200 conflicts with the groove wall of the arc-shaped notch groove 313, and the top surface of the electrode 200 conflicts with the conflicting portion 322. The cooperation relationship of the above structure further reduces the possibility of the protective cover 300 sliding off the electrode 200 or slipping, thereby ensuring the protective effect of the protective cover 300 on the electrode 200.

[0167] It should be noted that, in order to maximize the use of space, and in order to make the protective cover 300 have a certain volume and reduce the difficulty of production and processing of the protective cover 300, the protective unit 310 will be set on the insulator 220; and in order to ensure the stability of the fixation between the protective unit 310 and the electrode 200, the cross-sectional area of ​​the receiving groove 311 cannot be too large, so an adapter groove 340 is opened on one side wall of the receiving groove 311, and the adapter groove 340 is used to expand the cross-sectional area of ​​the bottom end of the receiving groove 311, so as not to affect the protection unit 310 and the electrode 200. 200, while the insulator 220 is wrapped into the receiving groove 311; in addition, since the electrode 200 is provided with electrode 200 sheets, and in order to facilitate installation, the directions of the electrode 200 sheets are generally consistent, which may cause the cross-sectional area of ​​the receiving groove 311 of at least one of the three protection units 310 to be too small; therefore, a receiving portion 700 can be protrudingly formed at the bottom of the protection unit 310, thereby expanding the cross-sectional area of ​​the receiving groove 311, thereby ensuring the normal installation of the protective cover 300.

[0168] 26 , the present application further proposes a protection component for use in a compressor; the protection component proposed in the present application includes at least one protector 600 and at least one protective cover 300, and both the protector 600 and the protective cover 300 may refer to the above description of the protector 600 and the protective cover 300; a plurality of electrodes 200 for electrical connection with the outside world are provided in the compressor, and the protector 600 is connected to the electrode 200; the protective cover 300 includes a plurality of protection units 310, and the number of the protection units 310 is not less than the number of the electrodes 200, and the protection units 310 are sleeved on the electrodes 200, and the protection units 310 correspond one to one to the electrodes 200; it should be noted that the connection method between the protection units 310 and the protection units 310 may refer to the above description, and the structure of a single protection unit 310 may also refer to the above description.

[0169] It should be noted that the protection unit 310 can also be divided into a first cylinder 320 and a second cylinder 330 as described above. The first cylinder 320 is used to cover the entire electrode 200 as described above to reduce the possibility of metal debris adhering to the electrode 200, thereby reducing the possibility of a short circuit between the electrode 200 and the shell or between the electrode 200 and the electrode 200; the second cylinder 330 is also used to provide protection for the electrode 200 while leaving the top of the electrode 200 exposed to facilitate connection to the protector 600; but it should be noted that, since the circuit settings in different compressors may be different, the number of electrodes 200 is also different, and thus the number of protectors 600 required is also different; when at least one electrode 20 is provided at a certain position in the compressor, 0, the number of protectors 600 can be selected according to demand, and then the number of first cylinders 320 and second cylinders 330 can be determined according to the number of protectors 600; the first cylinder 320 and the first cylinder 320, the first cylinder 320 and the second cylinder 330, that is, the second cylinder 330 and the second cylinder 330 can be connected, and the connection method can refer to the above description; the first cylinder 320 and the first cylinder 320, the first cylinder 320 and the second cylinder 330, that is, the second cylinder 330 and the second cylinder 330 can also be independent of each other, that is, a single first cylinder 320 or second cylinder 330 forms a protective cover 300; when at least one electrode 200 is respectively provided at multiple positions in the compressor, the protector 600 and the protective cover 300 can also be set to adapt with reference to the above method.

[0170] It should be noted that since the protective cover 300 is mounted on the electrode 200, the wires 500 and the plug terminals 510 connected to the protector 600 or the electrode 200 can also be adaptively adjusted, that is, the wires 500 and the plug terminals 510 can also be regarded as part of the protective component.

[0171] The present application also proposes a compressor, which includes the above-mentioned electrode terminal. The specific structure of the electrode terminal refers to the above-mentioned embodiment. Since the present compressor adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0172] The present application also proposes a refrigeration device, which includes the above-mentioned compressor and electrode terminals. The specific structure of the electrode terminals refers to the above-mentioned embodiments. Since the compressor adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0173] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An electrode terminal for a compressor, wherein: The electrode terminal comprises: An outer cover, the outer cover comprising a bottom plate and a surrounding plate connected to the bottom plate; At least three electrodes, the at least three electrodes pass through the bottom plate and are insulated and connected to the bottom plate; The protective cover comprises at least three protective units, and the three protective units are respectively provided with corresponding three electrodes.

2. The electrode terminal according to claim 1, wherein: Two adjacent protection units are connected to each other.

3. The electrode terminal according to claim 2, wherein: Two adjacent protection units are fixedly connected.

4. The electrode terminal according to claim 3, wherein: At least two of the protection units are integrally formed.

5. The electrode terminal according to claim 3, wherein: At least one connecting rib is arranged between two adjacent protection units.

6. The electrode terminal according to claim 3, wherein: Two adjacent protection units are glued to each other.

7. The electrode terminal according to claim 2, wherein: Two adjacent protection units are detachably connected.

8. The electrode terminal according to claim 7, wherein: Two adjacent protection units are connected by sliding; or two adjacent protection units are buckled with each other; or a connecting piece is provided between two adjacent protection units; or two adjacent protection units are connected by magnetic attraction.

9. The electrode terminal according to claim 2, wherein: Two adjacent protection units are movably connected.

10. The electrode terminal according to claim 9, wherein: Two adjacent protection units are rotatably connected.

11. The electrode terminal according to any one of claims 1 to 10, wherein: The protection units are penetrated to form a receiving groove for receiving the electrodes; the lengths of the protection units are equal, and the protection units are respectively sleeved on the electrodes.

12. The electrode terminal according to any one of claims 1 to 10, wherein: The protection unit is provided with a receiving groove for receiving the electrode; the protection unit comprises a first cylinder and a second cylinder of different lengths, the first cylinder and the second cylinder are respectively sleeved on the electrode, the second cylinder exposes the top end of the electrode, and the exposed top end of the electrode is used to connect the protector.

13. The electrode terminal according to claim 12, wherein: The exposed length of the top end of the electrode is not less than 5 mm.

14. The electrode terminal according to claim 12 or 13, wherein: An isolation gap is arranged between the protective cover and the enclosure plate.

15. The electrode terminal according to claim 14, wherein: The width of the isolation gap is not less than 0.1 mm.

16. The electrode terminal according to any one of claims 12 to 15, wherein: An escape opening is provided between two of the first cylinders adjacent to the second cylinders, and the escape opening is used for escaping the protector.

17. The electrode terminal according to any one of claims 12 to 16, wherein: A resisting portion is formed on the inner wall of the accommodating groove of the first cylinder, and the resisting portion resists the top surface of the electrode.

18. The electrode terminal according to claim 17, wherein: The interfering portion interferes with a portion of the top surface of the electrode.

19. The electrode terminal according to any one of claims 12 to 18, wherein: The electrode is provided with an electrode sheet, and in the first cylinder, the electrode sheet is arranged in the containing groove; and In the second cylinder, the electrode sheet passes through the receiving groove and is electrically connected to the protector.

20. The electrode terminal according to any one of claims 12 to 19, wherein: A fixing portion is arranged in the containing groove, and the fixing portion is in conflict with the electrode.

21. The electrode terminal according to claim 20, wherein: The fixing portion is provided with a notch groove, and the electrode is in conflict with the groove wall of the notch groove.

22. The electrode terminal according to claim 21, wherein: The cross section of the notch groove is arc-shaped.

23. The electrode terminal according to any one of claims 12 to 22, wherein: A clearance groove is provided on the top of the first cylinder, and the clearance groove is used for installing the plug-in terminal.

24. The electrode terminal according to any one of claims 12 to 23, wherein: A wire groove is provided on the top of the first cylinder, and the wire groove is used to accommodate the wires.

25. The electrode terminal according to any one of claims 12 to 24, wherein: An insulator is arranged between the electrode and the bottom plate, the electrode passes through the insulator to be electrically connected to the outside, and the insulator is made of at least one of glass crystal or ceramic material.

26. The electrode terminal according to claim 25, wherein: The protection unit is sleeved on the insulator.

27. The electrode terminal according to claim 26, wherein: An adapting groove is provided on one side wall of the containing groove, and the adapting groove is used to accommodate the insulator.

28. The electrode terminal according to any one of claims 12 to 27, wherein: A plurality of reinforcing ribs are arranged between the bottom plate and the enclosure plate.

29. A compressor, wherein: The compressor includes the electrode terminal according to any one of claims 1 to 28.

30. A refrigeration device, wherein: The refrigeration device comprises the compressor of claim 29.

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