Clamp with heating function

Abstract

Disclosed is a clamp with a heating function. The clamp with a heating function may comprise: a clamp comprising a pair of semi-annular members connected to each other; and a heating portion comprising a film heater provided with a heating surface carrying out a heating function and an extension surface formed at the end portion of the heating surface and having a terminal for applying power to the heating surface, and a tight-contact member which accommodates the film heater and is assembled to the outside of the semi-annular member, and to which a press-and-attach bolt is fastened so that the film heater can be in close contact with the semi-annular member.

Description

Clamp with heating function

[0001] The present invention relates to a clamp equipped with a heating function, and more specifically, to a clamp equipped with a heating function in which heat is uniformly and quickly conducted to the internal space of the clamp when a film heater generates heat, provides an excellent heating function with low voltage and low power, allows easy replacement of parts without the need to separate them from the connected pipes, etc. when replacing parts, and allows the film heater to be reassembled in a stable and aligned position when reassembled, thereby providing excellent workability and maintaining the operation of a production line, and allows a stable fastening structure to be maintained without reducing the thickness of the clamp, thereby ensuring durability for long-term use, and maintains a solid fastening state even when vibrating, and is capable of detecting the temperature of the clamp in real time.

[0002] Clamps have a variety of uses, from fastening components like pipes to attaching workpieces to separate machine tools. Among these, clamps used to fasten pipes in production processes require a variety of functions depending on the characteristics of the fluid flowing through the pipes.

[0003] Recently, in semiconductor production processes, a technology for maintaining a constant temperature of a fluid flowing along a pipe is required, and accordingly, a heating function or a temperature control function of a clamp for connecting pipes is required. Korean Patent Publication No. 10-2007-0043455 discloses a pipe connection clamp equipped with a heating means, and Korean Patent Registration No. 10-2164563 discloses a pipe connection clamp equipped with a surface heating element as a heating means.

[0004] However, in the case of a conventional pipe connection clamp equipped with a heating means, the heating means is located on or near the surface of the clamp, making it difficult for heat to be uniformly and quickly conducted to the internal space of the clamp, and the heating efficiency of the heating means is insufficient, making it impossible to implement a sufficient heating function with low voltage and low power.

[0005] In addition, conventional pipe connection clamps equipped with heating means have problems in that when a component such as a heater breaks down during production line operation, it is impossible to replace the component while the clamp is connected to the pipe due to interference between tools or equipment for replacing the component and structures surrounding the clamp, so the workability of replacing the component is reduced, and the production line must be stopped for replacing the component, which reduces production efficiency.

[0006] Additionally, there was a problem with the film heater being damaged because it was difficult to assemble it in the correct position during reassembly.

[0007] Accordingly, there is an urgent need for a clamp equipped with a heating function that conducts heat evenly and quickly to the internal space of the clamp when the film heater generates heat, provides excellent heating function with low voltage and low power, allows replacement of parts without the need to separate them from the connected pipes, etc., and provides excellent workability while maintaining the operation of the production line, and maintains a firm connection state even when vibrating.

[0008] The purpose of the present invention is to solve such problems, and to provide a clamp that conducts heat evenly and quickly to the internal space of the clamp when the film heater generates heat, provides excellent heating function with low voltage and low power, allows easy replacement of parts without the need to separate them from the connected pipes, etc. when replacing parts, and allows the film heater to be reassembled in a stable and aligned position when reassembled, thereby providing excellent workability and maintaining the operation of the production line, and maintains a stable fastening structure without reducing the thickness of the clamp, thereby ensuring durability for long-term use, and maintains a solid fastening state even when vibrating, and has a heating function that can detect the temperature of the clamp in real time.

[0009] According to one embodiment of the technical idea of ​​the present invention for achieving the above object, a clamp having a heating function may include: a clamp including a pair of semi-circular members connected to each other; and a heating part including a film heater having a heating surface performing a heating function and an extension surface formed at an end of the heating surface and having a terminal for applying power to the heating surface; and a contact member that accommodates the film heater and is assembled to the outside of the semi-circular member, and a compression bolt is fastened so that the film heater is in close contact with the semi-circular member.

[0010] In addition, the heating unit may include: a film heater; a bar-shaped pressure member having a curved surface formed in close contact with an outer surface of the film heater to pressurize the film heater; a contact member in which the film heater and the pressure member are accommodated and having a plurality of bolt holes formed on an outer surface thereof to assemble a compression bolt for pressing the pressure member; and a connection terminal portion installed on one side of the contact member and accommodating an extended surface of the film heater.

[0011] In addition, the semi-circular member may have a step portion formed to secure the adhesive member, and a bolt may be assembled at a portion where the step portion and the adhesive member overlap.

[0012] In addition, the above-mentioned adhesive member can be assembled by forming a longitudinal cross-section in the shape of the letter 'ㄷ' and having both ends secured to the step portion.

[0013] In addition, the film heater has a heating surface that is in close contact with the outer surface of the semi-circular member, and the extension surface is bent in a horizontal direction, and the extension surface can be accommodated in the connection terminal portion.

[0014] In addition, the semi-circular member is provided to face each other through a hinge member, and includes a first semi-circular member provided on one side of the hinge member; and a second semi-circular member provided on the other side of the hinge member; and the first semi-circular member and the second semi-circular member may be formed as an asymmetrical structure having different shapes.

[0015] In addition, the adhesion member includes a first adhesion member assembled to the first semi-ring member; and a second adhesion member assembled to the second semi-ring member; and the first adhesion member and the second adhesion member may be formed as asymmetrical structures having different shapes.

[0016] The clamp equipped with a heating function according to the present invention conducts heat evenly and quickly into the internal space of the clamp when the film heater generates heat, provides excellent heating function with low voltage and low power, allows easy replacement of parts without the need to separate them from the connected pipes, etc., and allows the film heater to be reassembled in a stable and aligned position when reassembled, thereby providing excellent workability and maintaining the operation of the production line, and can maintain a stable fastening structure without reducing the thickness of the clamp, thereby ensuring durability for long-term use, and can maintain a solid fastening state even when vibrating, and has the effect of detecting the temperature of the clamp in real time.

[0017] Figures 1 and 2 are perspective views of a clamp equipped with a heating function according to one embodiment of the present invention.

[0018] Figure 3 is an exploded perspective view of a clamp equipped with a heating function according to one embodiment of the present invention.

[0019] Figure 4 is a perspective cutaway view of a main portion of a clamp equipped with a heating function according to one embodiment of the present invention.

[0020] Figure 5 is a plan view of a clamp equipped with a heating function according to one embodiment of the present invention.

[0021] In order to fully understand the present invention, its operational advantages, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the drawings, which illustrate preferred embodiments of the present invention.

[0022] Hereinafter, the present invention will be described in detail by describing preferred embodiments thereof with reference to the attached drawings. The same reference numerals in each drawing represent the same components.

[0023] The present invention relates to a clamp equipped with a heating function, in which heat is uniformly and quickly conducted to the internal space of the clamp when a film heater generates heat, provides an excellent heating function with low voltage and low power, allows easy replacement of parts without the need to separate them from the connected pipes, etc. when replacing parts, and allows the film heater to be reassembled in a stable and aligned position when reassembled, thereby providing excellent workability and maintaining the operation of a production line, and can maintain a stable fastening structure without reducing the thickness of the clamp, thereby ensuring durability for long-term use, and can maintain a solid fastening state even when vibrating, and is equipped with a heating function capable of detecting the temperature of the clamp in real time.

[0024] FIG. 1 and FIG. 2 are perspective views of a clamp equipped with a heating function according to one embodiment of the present invention, FIG. 3 is an exploded perspective view of a clamp equipped with a heating function according to one embodiment of the present invention, FIG. 4 is a cutaway perspective view of a main portion of a clamp equipped with a heating function according to one embodiment of the present invention, and FIG. 5 is a plan view of a clamp equipped with a heating function according to one embodiment of the present invention.

[0025] Referring to FIGS. 1 to 5, a clamp equipped with a heating function according to one embodiment of the present invention may largely include a clamp (100) and a heating unit (200).

[0026] First, the clamp (100) includes a pair of semi-circular members connected to each other, wraps around and supports a pipe so that it can be used by being fastened to the pipe in a semiconductor industrial process, and can be made of a metal material such as copper or aluminum with high thermal conductivity.

[0027] The above clamp (100) may be composed of a pair of semi-circular members (110) connected to each other.

[0028] In addition, the clamp (100) is provided with a connecting bolt (130) for connecting the pair of semi-circular members (110), and a hinge member (120) for connecting the pair of semi-circular members (110) is provided on the opposite side of the connecting bolt (130).

[0029] Accordingly, a pipe is positioned between the pair of semi-circular members (110) separated by the hinge member (120), and the other end of the pair of semi-circular members (110) is fastened by the connecting bolt (130), so that the clamp (100) can wrap around and support the outer circumference of the pipe.

[0030] Meanwhile, the semi-circular member (110) is formed with a step portion (111) for the attachment member (230) described later to be fixed, and a bolt can be assembled at the portion where the step portion (111) and the attachment member (230) overlap.

[0031] In addition, the semi-circular member (110) may be provided to face each other through a hinge member (120), and may include a first semi-circular member (110a) provided on one side of the hinge member (120) and a second semi-circular member (110b) provided on the other side of the hinge member (120).

[0032] At this time, the first semi-circular member (110a) and the second semi-circular member (110b) may be formed as asymmetrical structures with different shapes.

[0033] For example, the first semi-ring member (110a) and the second semi-ring member (110b) are formed in a semi-ring shape facing each other, but the first semi-ring member (110a) and the second semi-ring member (110b) are formed in a different shape rather than a symmetrical shape, which is formed in an asymmetrical structure corresponding to the shape and structure of the contact member (230) in consideration of the interference area during the operation of the connecting bolt (130).

[0034] That is, the inner curved portions of the first semi-circular member (110a) and the second semi-circular member (110b) have the same circular shape when facing each other, but the outer portions may have different shapes.

[0035] Next, the heating part (200) may include a film heater (210) having a heating surface (211) that performs a heating function and an extension surface (212) formed at an end of the heating surface (212) and having a terminal for applying power to the heating surface (211), and a contact member (230) that accommodates the film heater (210) and is assembled to the outside of the semi-circular member (110) and to which a compression bolt (B) is fastened so that the film heater (210) is in close contact with the semi-circular member (110).

[0036] The above-described heating unit (200) may include a film heater (210), a bar-shaped pressure member (220) having a curved surface formed to press the film heater (210) by being in close contact with the outer surface of the film heater (210), a contact member (230) in which the film heater (210) and the pressure member (220) are accommodated and in which a plurality of bolt holes (231) are formed on the outer surface to assemble a compression bolt (B) for pressing the pressure member (220), and a connection terminal portion (240) installed on one side of the contact member (230) and in which the extended surface (212) of the film heater (210) is accommodated.

[0037] The above film heater (210) has the heating surface (211) in close contact with the outer surface of the semi-circular member (110), and the extension surface (212) is bent in a horizontal direction, and the extension surface (212) can be accommodated in a connection terminal portion (240) described later.

[0038] The film heater (210) above is not particularly limited in type as long as it is a thin film having a heating function, but preferably, the film heater (210) may be an etching-type film heater manufactured to have a heating function by etching a metal electrode pattern on a film substrate, or a carbon-based film heater manufactured to have a heating function by applying a carbon-based paste that interconnects electrodes formed on a film substrate.

[0039] An etching type film heater or a carbon film heater includes a base film (not shown) as a film substrate. The above base film is an insulating film for preventing a short between the pair of internal electrodes, and is made of polyethylene terephthalate (PET), polyimide (PI), polyacrylonitrile (PAN), polyurethane (PU), silicone, polycarbonate (PC), Tefron, liquid crystal polymer (LCP), polyether ether ketone (PEEK), polyether sulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethyelenen napthalate (PEN), polyphenylene sulfide (PPS), polyallylate, cellulose triacetate (CTA), It may include a plastic film made of one or more plastic materials selected from the group consisting of cellulose acetate propinonate (CAP), etc.

[0040] When the film heater (210) used in the present invention is an etching type film heater, the film heater (210) may be configured to include an electrode pattern patterned by an etching process using photolithography after laminating a metal foil on the base film and the upper surface of the base film.

[0041] In addition, the film heater (210) used in the present invention may be a carbon-based film heater. In this case, the film heater (210) may be configured to include the base film, one or more carbon-based heating elements (not shown) formed on the base film, and a pair of internal electrodes connected to each of the two ends of the carbon-based heating elements and having different polarities.

[0042] The above internal electrodes include a pair of electrodes having different polarities and made of a metal material such as silver (Ag), copper (Cu), aluminum (Al), stainless steel (SUS), nickel (Ni), or an alloy thereof, and for example, when one electrode of the pair of electrodes has a positive pole (+), the other electrode may have a negative pole (-).

[0043] The above internal electrode can be formed by printing a metal paste on one side of the base film using a printing technique such as screen printing, gravure printing, roll-to-roll gravure printing, comma coating, roll-to-roll comma coating, flexo, imprinting, or offset printing, and then drying and curing at 100°C to 180°C.

[0044] The above carbon-based heating element can be formed by printing and drying a heating element composition including a mixed binder and conductive particles, and the mixed binder can include two or more selected from the group consisting of a phenol-based resin, an acetal-based resin, an isocyanate-based resin, an epoxy-based resin, etc., so as to have heat resistance even at a temperature of about 300°C, and the conductive particles include carbon particles and may additionally include metal powder.

[0045] The carbon particles may include carbon black, carbon nanotubes, graphite, activated carbon, etc., preferably carbon nanotubes and graphite. Carbon nanotubes as the carbon particles have a large aspect ratio, so they not only enable the formation of a sufficient heat transfer network in a small amount, but also have the effect of increasing the glass transition temperature and heat resistance of the heating element composition, and graphite enables the achievement of low resistance that cannot be achieved with carbon nanotubes alone.

[0046] In addition, since the heating surface (211) of the film heater (210) is not attached to the surface of the clamp (100), but is inserted into the inside of the clamp (100) and then supported by the sealing member (230), the entire area of ​​the clamp (100) can be heated uniformly and quickly, not limited to the surface of the clamp (100), but also to the inside. In addition, when the film heater (210) uses a carbon-based heating element, it can provide an excellent heating function even at low voltage and low power.

[0047] Meanwhile, the heating surface (211) of the film heater (210) is configured to be mounted inside the clamp (100), and in order to smoothly supply current to the heating surface (211) of the film heater (210), the film heater (210) may be provided with an extension surface (212) formed with at least one external electrode that is exposed to the outside of the clamp (100).

[0048] The above extension surface (212) is configured with an electrode pad or electrode line on one side of the above heating surface (211), and may be configured to include a pair of electrodes made of the same metal material as the internal electrode and having different polarities.

[0049] The above extension surface (212) is connected to an external power supply and transmits the current supplied from the external power supply to the heating surface (211) of the film heater (210) provided inside the clamp (100) to thereby generate heat.

[0050] Accordingly, the area of ​​the film heater (210) except for the extension surface (212) can be provided in a state in which it is supported by the adhesion member (230) and is in contact with the inside of the clamp (100), that is, one side of the semi-circular member (110).

[0051] Meanwhile, the pressurizing member (220) is a bar-shaped member formed into a curved surface corresponding to the area and length of the heating surface (211).

[0052] That is, the above-mentioned pressurizing member (220) is a part that ensures that the entire surface of the heating surface (211) is completely in contact with the outer surface of the semi-circular member (110) and that the pressing bolt (B) does not directly pressurize the film heater (210).

[0053] For example, if the compression bolt (B) directly presses the heating surface (211), a problem may occur in which the film heater (210) is torn or damaged. To solve this problem, the compression bolt (B) is assembled so that the compression bolt (B) presses the pressurizing member (220) and the pressurizing member (220) presses the film heater (210).

[0054] Meanwhile, the above-mentioned sealing member (230) provides a space for accommodating the film heater (210), and a plurality of bolt holes (231) may be formed on the outer surface thereof to assemble a compression bolt (B) for pressing the pressure member (220).

[0055] The above-mentioned adhesive member (230) has a cross-section formed in the shape of the letter 'ㄷ' and can be assembled by having both ends secured to the step portion (111) of the semi-circular member (110).

[0056] At this time, bolt holes (not shown) may be formed at both ends of the adhesive member (230) to correspond to the bolt assembly bolt holes (not shown) formed in the step portion (111), and when the adhesive member (230) is assembled to the step portion (111), the bolt holes may be formed at positions that are offset to one side so as not to interfere with the film heater (210) and the pressurizing member (220) accommodated inside the adhesive member (230).

[0057] Meanwhile, the above-mentioned adhesion member (230) includes a first adhesion member (230a) assembled to the first semi-ring member (110a) and a second adhesion member (230b) assembled to the second semi-ring member (110b), and the first adhesion member (230a) and the second adhesion member (230b) may be formed as asymmetric structures with different shapes.

[0058] For example, the first adhesive member (230a) and the second semi-ring member (110b) are provided on the outside of the semi-ring member (110) in a direction facing each other, but the first adhesive member (230a) and the second semi-ring member (110b) are formed in a different shape rather than a symmetrical shape, which is formed in an asymmetrical structure corresponding to the shape and structure of the adhesive member (230) formed in consideration of the interference area during the operation of the connecting bolt (130).

[0059] At this time, the first adhesive member (230a) may be made of a larger size than the second semi-ring member (110b).

[0060] The above-mentioned adhesive member (230) is assembled on the outside of the semi-circular member (110) with the film heater (210) and the pressure member (220) accommodated inside, so that the film heater (210) can be easily separated and replaced when replaced due to a failure.

[0061] That is, by loosening the bolt of the single-jaw portion (111), the above-mentioned adhesive member (230) and all internal components can be separated at once.

[0062] In addition, when replacing and reassembling the film heater (210), the film heater (210) and the pressure member (220) can be assembled while being stably guided in the space inside the sealing member (230), thereby providing ease of assembly.

[0063] Meanwhile, the above compression bolt (B) may be a temperature sensor-compatible bolt, i.e., a bolt-type temperature sensor, thereby detecting the temperature inside the clamp (100) in real time, thereby enabling constant temperature control.

[0064] Here, the bolt-type temperature sensor may be formed of a bolt provided at one end and a wire connected to the bolt, and the bolt is in physical contact with a temperature sensing target, and the principle is to detect a temperature change based on the degree to which the current of the wire changes through a change in resistance according to a change in temperature of the bolt in contact with the temperature sensing target.

[0065] A typical bolt-type temperature sensor has a protruding end that physically comes into contact with a temperature sensing target from the bolt, but the bolt-type temperature sensor applied to the present invention may have a shape in which the end that comes into contact with the support structure does not protrude in order to stably perform the function of compressing the support structure.

[0066] Meanwhile, the adhesive member (230) may include a connection terminal portion (240) installed on one side and receiving an extension surface (212) of the film heater (210).

[0067] The above connection terminal portion (240) may include a terminal connection portion (241) and a terminal receiving portion (242).

[0068] The terminal connection portion (241) above is a portion that allows the extension surface (212) to be fixed in a folded state, and the extension surface (212) that is bent in a longitudinal horizontal state can be bent in close contact with the terminal connection portion (241) and the end can be fixed.

[0069] The above terminal receiving portion (242) is a portion that receives the extension surface (212) and provides a space for connecting an external power terminal.

[0070] That is, the terminal receiving portion (242) can provide a space into which a power line with a terminal (not shown) attached can be inserted and received.

[0071] The clamp equipped with a heating function according to the technical idea of ​​the present invention provides an excellent heating function with low voltage and low power, in which heat is uniformly and quickly conducted to the internal space of the clamp when the film heater generates heat, and in which parts can be easily replaced without having to separate them from the connected pipes, etc. when replacing parts, and in which the film heater can be reassembled while being stably aligned in the correct position when reassembled, so that the workability is excellent and the operation of the production line can be maintained, and a stable fastening structure can be maintained without reducing the thickness of the clamp, so that durability for long-term use can be secured, and a solid fastening state can be maintained even when vibrating, and there is an effect of being able to detect the temperature of the clamp in real time.

[0072] As described above, the best practice embodiments have been disclosed in the drawings and specifications. While specific terms have been used herein, they are used solely for the purpose of describing the present invention and are not intended to limit the meaning or scope of the invention as defined in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments are possible. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

[0073] The present invention is implemented as a clamp having a heating function that conducts heat evenly and quickly to the internal space of a clamp when a film heater generates heat, provides excellent heating function with low voltage and low power, allows easy replacement of parts without the need to separate them from the connected pipes, etc. when replacing parts, and allows the film heater to be reassembled in a stable and aligned position when reassembled, thereby providing excellent workability and maintaining the operation of a production line, and allows a stable fastening structure to be maintained without reducing the thickness of the clamp, thereby ensuring durability for long-term use and maintaining a solid fastening state even when vibrating, and is equipped with a heating function that can detect the temperature of the clamp in real time, but can be applied to various industrial fields within the scope of the configuration as in the present invention.

Claims

1. A clamp comprising a pair of semi-circular members connected to each other; and A clamp with a heating function, characterized by comprising: a heating part including a film heater having a heating surface that performs a heating function and an extension surface formed at an end of the heating surface and having a terminal for applying power to the heating surface; and a contact member that accommodates the film heater and is assembled to the outside of the semi-circular member and to which a compression bolt is fastened so that the film heater is in close contact with the semi-circular member.

2. In paragraph 1, The above heating part, film heater; A bar-shaped pressure member having a curved surface formed in close contact with the outer surface of the film heater to pressurize the film heater; A sealing member in which the film heater and the pressurizing member are accommodated, and a plurality of bolt holes are formed on the outer surface thereof for assembling a pressurizing bolt for pressurizing the pressurizing member; and A clamp equipped with a heating function, characterized by including a connection terminal portion installed on one side of the above-mentioned sealing member and receiving an extension surface of the above-mentioned film heater.

3. In paragraph 2, The above semi-circular absence is, A clamp equipped with a heating function, characterized in that a step portion is formed for fixing the above-mentioned sealing member, and a bolt is assembled to a portion where the step portion and the above-mentioned sealing member overlap.

4. In paragraph 3, The above adhesive member is, A clamp equipped with a heating function, characterized in that the cross-section is formed in a 'ㄷ' shape and both ends are assembled by being secured to the step portion.

5. In paragraph 2, The above film heater, A clamp with a heating function, characterized in that the heating surface is in close contact along the outer circumferential curve of the semi-circular member, the extension surface is bent in a horizontal direction, and the extension surface is received in the connection terminal portion.

6. In paragraph 2, The above semi-circular absence is, They are arranged to face each other through a hinge member, A first semi-ring member provided on one side of the above hinge member; and Including a second semi-ring member provided on the other side of the hinge member; A clamp equipped with a heating function, characterized in that the first semi-ring member and the second semi-ring member are formed of asymmetrical structures with different shapes.

7. In paragraph 6, The above adhesive member is, A first adhesive member assembled to the first semi-ring member; and Including a second adhesive member assembled to the second semi-ring member; A clamp equipped with a heating function, characterized in that the first adhesion member and the second adhesion member are formed of asymmetrical structures with different shapes.

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