WO-2026095111-A1 - LINEAR COMPRESSOR

WO2026095111A1WO 2026095111 A1WO2026095111 A1WO 2026095111A1WO-2026095111-A1

Abstract

The present invention relates to a linear compressor. A linear compressor according to an embodiment of the present invention comprises: a shell; a terminal coupled to an outer circumferential surface of the shell; a terminal bracket installed on the outer circumferential surface of the shell so as to surround the terminal; and a terminal cover mounted on the terminal bracket to cover the terminal, wherein the terminal cover comprises a hook that restrains at least a portion of the terminal bracket.

Inventors

LEE, KYEONGWEON
SONG, SANGJIN
PARK, MYUNGJAE

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (15)

Shell; A terminal coupled to the outer surface of the above shell; A terminal bracket installed around the terminal on the outer surface of the shell; and It includes a terminal cover mounted on the terminal bracket and covering the terminal, The above terminal cover is a linear compressor comprising a hook that restrains at least a portion of the terminal bracket.
In Article 1, The above terminal cover is, Cover base part, and It includes a cover side portion that is folded and extended from the edge of the cover base portion, The above-mentioned cover side portion is, The first side portion having the above-mentioned hook formed thereon, and It includes a second side portion positioned opposite to the first side portion, A linear compressor comprising a fixing projection that protrudes toward the first side portion and restrains at least a portion of the terminal bracket.
In Article 2, The above terminal bracket is, Bracket base part, and It includes a first bracket side portion that is bent and extended from one end of the bracket base portion, The above-mentioned first bracket side portion includes a bracket restraint groove formed by being recessed on the outer surface, and A linear compressor in which the fixing projection is inserted into the bracket restraint groove to restrict the movement of the terminal cover relative to the terminal bracket.
In Paragraph 3, The above terminal cover is, It includes a hook space formed between the above-mentioned cover base part and the above-mentioned hook, wherein In the above hook space, A linear compressor in which the other end located opposite to the one end of the bracket base portion is received and restrained.
In Paragraph 3, The above terminal cover is, It further includes a first guide rib that protrudes from one side of the cover base portion and is spaced apart opposite the second side portion to form a first mounting groove, A linear compressor in which a side portion of the first bracket is inserted into the first mounting groove to restrict the movement of the terminal cover relative to the terminal bracket.
In Article 5, The above fixed projection is disposed on one side of the first guide rib, The above bracket restraint groove is a linear compressor disposed outside the above first mounting groove.
In Article 5, The above terminal bracket is, It further includes a second bracket side portion that is bent and extended from the other end of the bracket base portion and extends in a direction intersecting the first bracket side portion, The above-mentioned cover side portion is, It further includes a third side portion that is bent and extended from one side of the second side portion toward the first side portion, The above terminal cover is, It further includes a second guide rib that protrudes from one side of the cover base portion and is spaced apart opposite the third side portion to form a second mounting groove, A linear compressor in which the second bracket side portion is inserted into the second mounting groove to restrict the movement of the terminal cover relative to the terminal bracket.
In Article 7, A linear compressor in which the first guide rib and the second guide rib extend in directions intersecting each other.
In Article 7, The above terminal bracket is, It further includes a first bracket protrusion that is bent and protrudes from an end located opposite to the second bracket side portion at the bracket base portion, The above-mentioned cover side portion is, It further includes a fourth side portion that is bent and extended from one side of the first side portion toward the second side portion, A linear compressor in which the fourth side portion is supported by the first bracket protrusion to restrict the flow of the terminal cover relative to the terminal bracket.
In Article 9, The above terminal bracket is, The bracket base portion further includes a second bracket protrusion formed protruding between the first bracket protrusion and the first bracket side portion, wherein The above terminal cover is, A cover receiving portion disposed by being recessed on one side of the above-mentioned cover base portion, and It includes a protruding rib formed protruding between the cover base portion and the cover receiving portion, A linear compressor in which the above-mentioned protruding rib is supported by the above-mentioned second bracket protrusion to restrict the flow of the terminal cover relative to the terminal bracket.
In Paragraph 3, The above-mentioned first bracket side portion is, A linear compressor further comprising a side protrusion formed protruding from a portion corresponding to the bracket restraint groove on the inner surface.
In Paragraph 3, The above bracket base part is, A linear compressor including a bracket opening into which the above terminal is inserted.
In Article 12, The above bracket base part is, The shell includes a plurality of bracket fastening holes through which a fastening member for screw fastening passes on the outer surface of the shell, A linear compressor in which the plurality of bracket fastening holes are arranged to surround the bracket opening.
In Article 1, The above shell forms an internal space, and It further includes a main body disposed within the above internal space, The above main body is, A discharge cover assembly that supports a discharge valve and forms a discharge chamber for the refrigerant discharged through the discharge valve; A frame that supports the discharge cover and is made of a metal material; and It includes a cylinder into which a piston that reciprocates in the axial direction is inserted, which is supported inside the above frame, and The above discharge cover assembly is, A first discharge cover forming a first discharge chamber for the refrigerant discharged through the above discharge valve, and It includes a second discharge cover coupled to the first discharge cover and forming a discharge chamber for the refrigerant discharged from the first discharge chamber, and The first discharge cover and the second discharge cover are, A linear compressor, each supported to be in contact with the frame and made of a non-metallic material.
In Article 14, The above-mentioned first discharge cover is, A discharge hole for discharging refrigerant to the first discharge chamber; and It includes a recessed portion into which the refrigerant discharged from the above discharge hole is introduced and the second discharge cover is coupled, The above second discharge cover is, An outer wall forming a space into which the first discharge cover is inserted, and It includes an inner wall that protrudes from the inner surface of the outer wall and is coupled to the first discharge cover, The discharge chamber of the second discharge cover above is, Defines an inner discharge chamber of the inner wall and a second discharge chamber connected to the first discharge chamber, and A linear compressor comprising a third discharge chamber defining an outer discharge chamber of the inner wall.

Description

Linear compressor The present invention relates to a linear compressor. In a reciprocating compressor, a compression space for compressing the working gas is formed between the piston and the cylinder, and the piston compresses the refrigerant introduced into the compression space as it moves in a straight line back and forth inside the cylinder. Recently, among the aforementioned reciprocating compressors, many linear compressors have been developed that are simple in structure and can improve compression efficiency without mechanical losses occurring when converting the motor's rotational motion into linear motion, by directly connecting the piston to a drive motor that performs reciprocating linear motion. Generally, a linear compressor is configured such that a piston moves in a reciprocating linear motion inside a cylinder driven by a linear motor within a sealed shell, drawing in and compressing refrigerant, and then discharging it. The high-temperature refrigerant compressed in the compression space of the cylinder can flow toward the discharge cover via the discharge valve. The discharge cover is coupled to a frame supporting the cylinder and can form a discharge chamber through which the high-temperature discharge gas flows. Meanwhile, a terminal that transmits external power to the motor assembly is installed on the outer surface of the shell of the linear compressor. On the outer side of the terminal, a terminal bracket that protects the terminal from external impacts and the like, and a terminal cover that prevents the terminal from being exposed to the outside are installed. (Patent Document 1) Korean Registered Patent Publication 10-2357601 (January 26, 2022), Title of Invention: Linear Compressor FIG. 1 is a perspective view of a linear compressor according to an embodiment of the present invention. Figure 2 is a cross-sectional view taken along 2-2 of Figure 1. Figure 3 is a cross-sectional view taken along 3-3 of Figure 2. FIG. 4 is a cross-sectional view showing the configuration of a discharge cover assembly according to an embodiment of the present invention. FIG. 5 is an exploded perspective view of the shell, terminal bracket, and terminal cover of a linear compressor according to an embodiment of the present invention. FIG. 6 is a front perspective view of a terminal cover according to an embodiment of the present invention. FIG. 7 is a rear perspective view of a terminal cover according to an embodiment of the present invention. FIG. 8 is an upper perspective view of a terminal bracket according to an embodiment of the present invention. FIG. 9 is a lower perspective view of a terminal bracket according to an embodiment of the present invention. FIG. 10 is a rear view of a structure in which a terminal cover and a terminal bracket are combined according to an embodiment of the present invention. Figure 11 is a cross-sectional view taken along 11-11 of Figure 10. Fig. 12 is a cross-sectional view taken along 12-12 of Fig. 10. Figure 13 is a cross-sectional view taken along 13-13 of Figure 10. Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component. FIG. 1 is a perspective view of a linear compressor according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along 2-2 of FIG. 1. FIG. 3 is a cross-sectional view taken along 3-3 of FIG. 2. FIG. 4 is a cross-sectional view showing the configuration of a discharge cover assembly according to an embodiment of the present invention. Referring to FIGS. 1 to 4, a linear compressor (10) according to an embodiment of the present invention may include a shell (11) and a first shell cover (12) and a second shell cover (13) coupled to both sides of the shell (11). For example, the first shell cover (12) may be coupled to the side where the refrigerant is sucked in,