Special-shaped belt type resistor

Abstract

The utility model relates to the technical field of resistors, in particular to a special-shaped belt type resistor which comprises a supporting assembly and a resistor assembly, the supporting assembly comprises an insulated supporting base body, a plurality of supporting arms are distributed on the supporting base body in the circumferential direction, each supporting arm is provided with a plurality of positioning grooves which are arranged at intervals inside and outside, and the positioning grooves are longitudinally arranged; the resistor assembly comprises a plurality of resistor discs which are bent in a wave shape, the two sides of each resistor disc are embedded into the positioning grooves of the two adjacent supporting arms, and the resistor discs between the two adjacent supporting arms are arranged in a spaced mode inside and outside. A separation groove is formed in the middle of each resistor disc and is a blind groove only penetrating through one end of the resistor disc, so that the resistor disc is divided into a first current limiting part, a connection part and a second current limiting part, and the connection part is located at the bottom of the blind groove so as to connect the first current limiting part with the second current limiting part; and the first current limiting part and the second current limiting part are respectively connected with leading-out terminals. Compared with the prior art, mounting and dismounting are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of resistance, specifically to a special-shaped belt type resistance. BACKGROUND

[0002] At present, the resistance sheet assembly of high-power resistor is various in form, especially in the field of high-power, high-energy and low-resistance resistor, different cracks are directly punched on stainless steel resistance plate to form a loop, which is directly used as a resistance sheet assembly. The tail of the crack of the resistance sheet forms a sharp angle in this way, which is poor in resisting current impact, cannot continuously pass through the load and has unreliable performance. Because the crack is directly punched on the resistance sheet to form a current flow loop, the tail of the crack forms a sharp angle, and after passing through a large current, the current is easily concentrated, the resistance sheet is directly burned out, and the resistor is scrapped.

[0003] Then the overall belt resistance appeared, but the existing resistance belt is difficult to deform after installation, cannot be adjusted according to the use environment, and the flexibility needs to be improved.

[0004] Then the inventor developed a special-shaped belt resistance disclosed in Chinese document with publication number CN115831506A, which includes an upper seat and a lower seat, a plurality of support rods are vertically arranged between the upper seat and the lower seat, a plurality of longitudinally separated resistance belt groups are arranged along the length direction of the support rods, each resistance belt group includes a plurality of resistance strips arranged transversely from inside to outside, each resistance strip is in a closed loop curved shape, so that the resistance strip forms a plurality of concave parts and arch parts in sequence; the support rod is provided with a plurality of clamping grooves, the concave part and the arch part of the resistance strip are respectively embedded in different clamping grooves; the support rod corresponding to the arch part can move in the inner and outer directions under the action of external force, and when in use, the support rod of the arch part can be applied with a large enough force according to the use environment, such as space requirement, temperature, wind direction, etc., so that the stressed support rod drives the corresponding arch part to arch more greatly, and after the external force is removed, the strength of the resistance strip is enough to maintain the adjusted shape, so the adaptability and flexibility are stronger.

[0005] However, the existing special-shaped belt resistance is relatively complex to install, and there is a need to simplify and improve the installation structure. SUMMARY

[0006] In view of all or part of the above technical problems existing in the prior art, the utility model provides a special-shaped belt resistance.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A special-shaped belt resistance is provided, which includes a support assembly and a resistance assembly, the support assembly includes an insulating support base, the support base is distributed with a plurality of support arms around the circumference, the support arms are provided with a plurality of positioning grooves arranged inside and outside, and each positioning groove is longitudinally arranged;

[0009] The resistance assembly comprises wave-shaped curved multiple resistance sheets, the two side portions of the multiple resistance sheets are embedded into the positioning grooves of the two adjacent supporting arms, and the multiple resistance sheets are arranged in a separated manner inside and outside the two adjacent supporting arms; the middle portion of each resistance sheet is provided with a separation groove, the separation groove is a blind groove only penetrating one end of the resistance sheet, so as to divide the resistance sheet into a first current limiting portion, a connecting portion and a second current limiting portion, the connecting portion is located at the bottom of the blind groove so as to connect the first current limiting portion and the second current limiting portion; the first current limiting portion and the second current limiting portion are respectively connected with the lead-out terminals.

[0010] Specifically, the supporting assembly further comprises multiple insulating positioning plates, the multiple positioning plates are respectively located between the two supporting arms and pass through the separation grooves of the resistance sheets.

[0011] Specifically, the supporting base is provided with a stop groove for embedding the positioning plate.

[0012] Specifically, the positioning plate is a mica plate.

[0013] Specifically, the supporting base is a ceramic piece in an integrated structure.

[0014] Specifically, the supporting assembly further comprises a first disc body, a second disc body and a screw rod, the first disc body and the second disc body are respectively located at the two end portions of the supporting base and abut against the two ends of the resistance sheet, the screw rod passes through the first disc body, the supporting base and the second disc body, the screw rod is provided with a locking nut, so as to fix the first disc body, the supporting base and the second disc body to each other.

[0015] Specifically, the first disc body and / or the second disc body is provided with multiple accommodation holes, the lead-out terminals pass out of the accommodation holes.

[0016] Specifically, the two side portions of each resistance sheet are straight sections and elastically abut against the groove bottoms of the positioning grooves.

[0017] Specifically, the four supporting arms are arranged in a 90° uniform separated manner, and the side wall at the intersection of the roots of the two adjacent supporting arms is arc-shaped and adapted to the resistance sheet.

[0018] The utility model discloses the beneficial effects of:

[0019] The utility model discloses a special-shaped belt type resistance, when manufacturing, first according to the preset shape forming corresponding resistance sheet, then directly embedding the resistance sheet into the positioning groove of the two adjacent supporting arms of the supporting base, so that the installation and dismounting are convenient. When using, the current passes through the lead-out terminal, the first current limiting portion, the connecting portion, the second current limiting portion and another lead-out terminal in turn, so that the use is convenient. DRAWINGS

[0020] Fig. 1 It is a structural schematic view of a special-shaped belt type resistance in the embodiment.

[0021] Fig. 2 This is a schematic diagram of an irregularly shaped strip resistor in one embodiment, after partially concealing the support components.

[0022] Fig. 3 This is a cross-sectional view of an irregularly shaped strip resistor in one of the embodiments.

[0023] Fig. 4 This is a schematic diagram of the resistor in the embodiment.

[0024] Figure label:

[0025] Support base 1, support arm 11, positioning groove 12, stop groove 13;

[0026] Resistor 2, dividing groove 21, first current limiting part 22, connecting part 23, second current limiting part 24;

[0027] Lead-out terminal 3;

[0028] Positioning plate 4;

[0029] First disc 51, second disc 52, screw 53, locking nut 54, clearance hole 55. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] This embodiment features an irregularly shaped strip resistor, such as... Figs. 1 to 4 As shown, the assembly includes a support component and a resistor component. The support component includes an insulated support base 1, with four support arms 11 distributed circumferentially around the support base 1. The four support arms 11 are evenly spaced at 90° intervals. Each support arm 11 is provided with multiple positioning grooves 12 arranged with inner and outer separations, and each positioning groove 12 is arranged vertically in the longitudinal direction.

[0032] The resistor assembly includes multiple wavy, curved resistor sheets 2. The two sides of each resistor sheet 2 are embedded in the positioning grooves 12 of two adjacent support arms 11, and the resistor sheets 2 are arranged in a separated manner between adjacent support arms 11. During manufacturing, the resistor sheets 2 are first bent into the desired shape, and then the two sides of each resistor sheet 2 are directly embedded into the positioning grooves 12 of two adjacent support arms 11 of the support base 1, making installation and disassembly convenient.

[0033] The middle part of each resistance sheet 2 is provided with a separation groove 21, the separation groove 21 is a blind groove only penetrating the upper end of the resistance sheet 2, the lower end is not penetrated, thereby dividing the resistance sheet 2 into a first current limiting part 22, a connecting part 23 and a second current limiting part 24, the connecting part 23 is located at the bottom of the blind groove thereby connecting the first current limiting part 22 and the second current limiting part 24, each resistance sheet 2 is an integrated structure. The first current limiting part 22 and the second current limiting part 24 are respectively connected with an outgoing terminal 3. In use, the current passes through the outgoing terminal 3, the first current limiting part 22, the connecting part 23, the second current limiting part 24 and another outgoing terminal 3 in turn, which is convenient to use. In practice, each resistance sheet 2 can be used independently, and the corresponding outgoing terminals 3 of each resistance sheet 2 can be connected in series or parallel.

[0034] Specifically, the supporting assembly further comprises a plurality of insulating positioning plates 4, the plurality of positioning plates 4 are respectively located between each two supporting arms 11 and penetrate the separation groove 21 of each resistance sheet 2, thereby enhancing the positioning of the resistance sheet 2 and separating the first current limiting part 22 and the second current limiting part 24.

[0035] Specifically, the supporting base 1 is provided with a stop groove 13 for embedding the positioning plate 4.

[0036] Specifically, the positioning plate 4 is a mica plate.

[0037] Specifically, the supporting base 1 is a ceramic piece in an integrated structure.

[0038] Specifically, the supporting assembly further comprises a first disc body 51, a second disc body 52 and a screw rod 53, the first disc body 51 and the second disc body 52 are respectively located at the two end parts of the supporting base 1 and abut against the two ends of the resistance sheet 2, the screw rod 53 penetrates the first disc body 51, the supporting base 1 and the second disc body 52, the screw rod 53 is provided with a locking nut 54, thereby fixing the first disc body 51, the supporting base 1 and the second disc body 52 to each other.

[0039] Specifically, the first disc body 51 and / or the second disc body 52 are provided with a plurality of accommodation holes 55, the outgoing terminal 3 penetrates the accommodation hole 55.

[0040] Specifically, the two side parts of each resistance sheet 2 are straight sections, the resistance sheet 2 itself has a certain bending elasticity, the two side parts of the resistance sheet 2 elastically abut against the groove bottom of the positioning groove 12, thereby enhancing the stability of the resistance sheet 2 and preventing the resistance sheet 2 from shaking.

[0041] Specifically, the side wall of the root intersection of the two adjacent supporting arms 11 is arc-shaped and is adapted to the resistance sheet 2.

[0042] In the description of the present application, obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0043] Therefore, the above detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0044] In the description of the present application, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected, or electrically connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. An irregularly shaped strip resistor, characterized in that: It includes a support assembly and a resistor assembly. The support assembly includes an insulated support base (1). The support base (1) has multiple support arms (11) distributed around the circumference. The support arms (11) are provided with multiple positioning grooves (12) arranged in an inner and outer separation. Each positioning groove (12) is arranged longitudinally. The resistor assembly includes multiple resistor sheets (2) with a wavy bend. The two sides of the multiple resistor sheets (2) are embedded in the positioning grooves (12) of two adjacent support arms (11), and the multiple resistor sheets (2) between the two adjacent support arms (11) are arranged in a separate arrangement. Each resistor sheet (2) has a dividing groove (21) in the middle. The dividing groove (21) is a blind groove that only penetrates one end of the resistor sheet (2), thereby dividing the resistor sheet (2) into a first current limiting part (22), a connecting part (23), and a second current limiting part (24). The connecting part (23) is located at the bottom of the blind groove and connects the first current limiting part (22) and the second current limiting part (24). The first current limiting part (22) and the second current limiting part (24) are respectively connected to lead-out terminals (3).

2. The irregularly shaped strip resistor according to claim 1, characterized in that: The support assembly also includes multiple insulating positioning plates (4), which are located between each pair of support arms (11) and pass through the partition grooves (21) of each resistor sheet (2).

3. The irregularly shaped strip resistor according to claim 2, characterized in that: The support base (1) is provided with a stop groove (13) for the positioning plate (4) to be embedded.

4. The irregularly shaped strip resistor according to claim 2, characterized in that: The positioning plate (4) is a mica plate.

5. The irregularly shaped strip resistor according to claim 1, characterized in that: The support substrate (1) is an integrated ceramic component.

6. The irregularly shaped strip resistor according to claim 1, characterized in that: The support assembly also includes a first disc (51), a second disc (52), and a screw (53). The first disc (51) and the second disc (52) are located at the two ends of the support base (1) and abut against the two ends of the resistor sheet (2). The screw (53) passes through the first disc (51), the support base (1), and the second disc (52). The screw (53) is fitted with a locking nut (54), thereby fixing the first disc (51), the support base (1), and the second disc (52) to each other.

7. The irregularly shaped strip resistor according to claim 6, characterized in that: The first disc body (51) and / or the second disc body (52) have multiple clearance holes (55), and the lead-out terminal (3) passes through the clearance holes (55).

8. The irregularly shaped strip resistor according to claim 1, characterized in that: Each resistor sheet (2) has straight sections on both sides and elastically presses against the bottom of the positioning groove (12).

9. A non-circular strip resistor according to claim 1, characterized in that: four... The support arms (11) are evenly spaced at 90° intervals, and the sidewall at the junction of the roots of two adjacent support arms (11) is an arc shape adapted to the resistor sheet (2).

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