Speed regulation resistor of automobile air conditioner

Abstract

The embodiment of the utility model discloses a speed regulation resistor of an automobile air conditioner in the technical field of resistors. When the resistor core, the protective cover and the limiting base are installed, the bottom plate is inserted into a groove cavity of a clamping groove, the resistor core is positioned, a second limiting block is located in a groove cavity of a positioning hole, the resistor core is sleeved with the shell, the limiting hole is aligned with a hole cavity of the positioning hole, and an L-shaped plate body and a connecting block are located in a groove cavity of a second limiting groove; the L-shaped plate body is lifted upwards and rotated by 90 degrees, so that the connecting block is rotated into a groove cavity of the clamping groove, the spring extrudes the limiting ring downwards, the connecting block is located in the groove cavity of the clamping groove all the time, when an automobile runs on a bumpy road section, the connecting block is not prone to sliding out of the groove cavity of the clamping groove, and the shell can protect the resistor core all the time.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of resistor, specifically relates to a speed regulating resistor of automobile air conditioner. BACKGROUND

[0002] The speed regulating resistor of automobile air conditioner is installed in the fan air duct, is connected in series with the air volume switch and the fan through the wire harness, and mainly functions is that different gear positions of the speed regulating resistor are connected into the fan circuit through the air volume switch conversion gear position, the resistance of the air conditioner fan circuit changes, the fan end voltage changes, and the size of the fan air volume is adjusted.

[0003] For example, the specific content of the speed regulating resistor for the automobile air conditioner fan disclosed in Chinese patent application No. CN202020496942.4 is that a protective cover is further arranged outside the resistance core, a threaded hole is arranged at one end of the mounting column close to the resistance core, through holes are arranged at both ends of the bottom of the protective cover in the length direction of the mounting seat, locking bolts are arranged in the through holes and are screwed with the threaded holes, the protective cover is fixedly connected to the mounting seat through the locking bolts, the resistance core is first installed on the plug, then the high-temperature-resistant plastic is fixed on the plug by injection molding, the high-temperature-resistant plastic is injection molded to form the mounting seat, during installation, the work personnel inserts the mounting seat into the base, inserts the mounting plug of the mounting seat into the socket of the base, and inserts the mounting column of the mounting seat into the mounting pipe of the base, and then the base is fixed in the automobile fan air duct through the bolts; when the fan speed regulation fails during long-term use, the base needs to be disassembled to check the resistance core, if the resistance core is found to be damaged, the mounting seat can be pulled out, and then a new resistance core can be replaced, which has the following technical problems:

[0004] The automobile often passes through a bumpy section during driving, and long-term bumping easily causes the locking bolt to loosen, and in severe cases, the locking bolt easily falls off, causing the protective shell to fall off. UTILITY MODEL CONTENT

[0005] Therefore, the embodiment of the utility model provides a speed regulating resistor of automobile air conditioner to solve the problem that the locking bolt easily falls off due to long-term bumping in the prior art, causing the protective shell to fall off.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical scheme:

[0007] A speed regulating resistor of automobile air conditioner, comprising a resistance core.

[0008] A protective cover for protecting the resistance core is mounted outside the resistance core, and a limiting base for limiting the resistance core is mounted at the lower end of the resistance core.

[0009] The protective cover comprises a shell, a limiting block one is arranged at the lower end of the shell, and a clamping groove is formed in the upper end of the limiting block one.

[0010] A clamping groove two for limiting the resistance core is formed in the middle of the limiting base, and a locking assembly for locking the resistance core in cooperation with the clamping groove is arranged at both ends of the groove cavity of the clamping groove two.

[0011] Further, the lower end of the resistance core is provided with a bottom plate for supporting the resistance core.

[0012] Further, positioning holes are formed in both sides of the bottom plate, and limiting grooves are formed in both sides of the hole cavity of the positioning holes.

[0013] Further, a plurality of heat dissipation grooves for facilitating heat dissipation are formed in the middle of the shell.

[0014] Further, a limiting hole is formed in the middle of the limiting block one, and the limiting hole is communicated with the clamping groove, limiting grooves two are formed in the left and right sides of the limiting hole, and the limiting grooves two are perpendicular to the groove cavity of the clamping groove.

[0015] Further, the bottom plate is arranged in the groove cavity of the clamping groove two, positioning rods are arranged at both sides of the groove cavity of the clamping groove two, limiting blocks two for limiting the locking assembly are arranged in the middle of the positioning rods, and limiting plates are arranged at the top of the positioning rods.

[0016] Further, springs for pushing the locking assembly downward are arranged on the upper end of the positioning rods.

[0017] Further, the locking assembly comprises a limiting ring, a through hole for limiting the limiting ring in cooperation with the positioning rods is formed in the middle of the limiting ring, two connecting blocks are arranged on the outer wall of the through hole, and L-shaped plate bodies for facilitating the upward pulling of the limiting ring are arranged on one side of the connecting blocks.

[0018] The embodiments of the utility model have the following advantages:

[0019] When the resistance core, the protective cover and the limiting base are installed, the bottom plate is inserted into the groove cavity of the clamping groove two, the resistance core is positioned, the limiting block two is arranged in the groove cavity of the positioning hole, the shell is arranged outside the resistance core, the limiting hole and the hole cavity of the positioning hole are aligned, the L-shaped plate body and the connecting block are arranged in the groove cavity of the limiting groove two, the L-shaped plate body is pulled upward and rotated by 90 degrees, the connecting block is rotated into the groove cavity of the clamping groove, the spring extrudes the limiting ring downward, the connecting block is always arranged in the groove cavity of the clamping groove, and when the automobile runs on a bumpy road section, the connecting block is not easy to slide out of the groove cavity of the clamping groove, so that the shell can always protect the resistance core. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0021] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0022] Figure 1 It is a schematic view of the overall structure of the present application.

[0023] Figure 2 It is a schematic view of the structure of the resistance core of the present application.

[0024] Figure 3 It is a schematic view of the structure of the protective cover of the present application.

[0025] Figure 4 It is a schematic view of the structure of the limiting block one of the present application.

[0026] Figure 5 It is a schematic view of the structure of the limiting base of the present application.

[0027] Figure 6 It is a schematic view of the structure of the locking assembly of the present application.

[0028] In the figure: 100-resistance core, 110-bottom plate, 111-positioning hole, 112-limiting groove one;

[0029] 200-protective cover, 210-outer shell, 211-radiating groove, 220-limiting block one, 221-limiting hole, 222-limiting groove two, 223-clamping groove;

[0030] 300-limiting base, 310-clamping groove, 320-locking assembly, 321-limiting ring, 322-through hole, 323-connecting block, 324-L-shaped plate body, 330-spring, 340-positioning rod, 341-limiting block two, 342-limiting plate. DETAILED DESCRIPTION

[0031] The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] The terms such as "upper", "lower", "left", "right", "middle" and the like cited in the specification are only for the convenience of clear description, not to limit the scope of the present application, and the change or adjustment of the relative relationship is also considered as the scope of the present application without substantial change of the technical content.

[0033] Please refer to Figures 1-6 The present application provides a kind of automobile air conditioner speed resistor, including resistance core 100, protective cover 200 and limit base 300.

[0034] The lower end of the resistance core 100 is fixedly installed with a bottom plate 110 for supporting the resistance core 100, and positioning holes 111 are formed on the left and right sides of the bottom plate 110, limit grooves 112 are formed on the left and right sides of the hole cavities of the positioning holes 111, and the limit ring 321 and the positioning rod 340 can pass through the hole cavities of the positioning holes 111, and the L-shaped plate body 324 and the connecting block 323 pass through the groove cavities of the limit grooves 112.

[0035] The resistance core 100 is externally installed with a protective cover 200 for protecting the resistance core 100, and the protective cover 200 includes a shell 210, and a plurality of heat dissipation grooves 211 are formed in the middle part of the shell 210 to facilitate heat dissipation.

[0036] The lower end of the shell 210 is fixedly installed with a limit block one 220 on the left and right sides, a limit hole 221 is formed in the middle part of the limit block one 220, a clamping groove 223 is formed in the upper end of the limit block one 220, and the limit hole 221 and the clamping groove 223 are in communication, limit grooves two 222 are formed on the left and right sides of the limit hole 221, and the groove cavities of the limit grooves two 222 and the clamping groove 223 are perpendicular to each other, so as to facilitate the ninety-degree rotation of the locking assembly 320, and the connecting block 323 is clamped into the groove cavity of the clamping groove 223.

[0037] The lower end of the resistance core 100 is installed with a limit base 300 for limiting the resistance core 100, and the middle part of the limit base 300 is provided with a clamping groove two 310 for limiting the resistance core 100, and the bottom plate 110 is installed in the groove cavity of the clamping groove two 310.

[0038] The locking assembly 320 is fixedly installed at both ends of the slot cavity of the second clamping groove 310 and is used for locking the resistance core 100 in cooperation with the clamping groove 223. The locking assembly 320 comprises a limiting ring 321, a through hole 322 is formed in the middle of the limiting ring 321 and is used for limiting the limiting ring 321 in cooperation with the positioning rod 340, so that the limiting ring 321 slides in the middle of the rod body of the positioning rod 340. Two connecting blocks 323 are fixedly installed on the outer wall of the through hole 322, and an L-shaped plate body 324 is fixedly installed on one side and upper end of the connecting block 323, which facilitates the upward pulling of the limiting ring 321.

[0039] The upper end of the positioning rod 340 is sleeved with a spring 330 which is used for pushing the locking assembly 320 downward, and the upper end of the spring 330 abuts against the limiting ring 321. The positioning rod 340 is fixedly installed at both sides of the slot cavity of the second clamping groove 310, and a limiting block two 341 is fixedly installed in the middle of the positioning rod 340 and is used for limiting the locking assembly 320. The limiting block two 341 abuts against the bottom wall of the limiting ring 321. A limiting plate 342 is fixedly installed on the top of the positioning rod 340, and the spring 330 is located at the lower end of the limiting plate 342. The limiting block two 341 and the limiting plate 342 have the same diameter.

[0040] When the resistance core 100, the protective cover 200 and the limiting base 300 are installed, the bottom plate 110 is inserted into the slot cavity of the second clamping groove 310 to position the resistance core 100, so that the limiting block two 341 is located in the slot cavity of the positioning hole 111. The shell 210 is sleeved outside the resistance core 100, and the limiting hole 221 is aligned with the hole cavity of the positioning hole 111, so that the L-shaped plate body 324 and the connecting block 323 are located in the slot cavity of the limiting groove two 222. By pulling the L-shaped plate body 324 upward and rotating it by ninety degrees, the connecting block 323 is turned into the slot cavity of the clamping groove 223, the spring 330 extrudes the limiting ring 321 downward, and the connecting block 323 is always located in the slot cavity of the clamping groove 223. When the automobile drives on a bumpy road section, the connecting block 323 is not easy to slide out of the slot cavity of the clamping groove 223, so that the shell 210 can always protect the resistance core 100.

[0041] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of protection required by the utility model.

Claims

1. An automobile air conditioner speed resistor, comprising a resistor core (100), characterized in that: an outer part of the resistor core (100) is provided with a protective cover (200) for protecting the resistor core (100), and a lower end of the resistor core (100) is provided with a limiting base (300) for limiting the resistor core (100). The protective cover (200) comprises a shell (210), and a limiting block one (220) is arranged at a lower end of the shell (210), and a clamping groove (223) is arranged at an upper end of the limiting block one (220). A middle part of the limiting base (300) is provided with a clamping groove two (310) for limiting the resistor core (100), and locking assemblies (320) are arranged at both ends of a groove cavity of the clamping groove two (310) for locking the resistor core (100). A lower end of the resistor core (100) is provided with a bottom plate (110) for supporting the resistor core (100).

2. The speed resistor for an automobile air conditioner according to claim 1, wherein: Both sides of the bottom plate (110) are provided with positioning holes (111), and limiting grooves (112) are arranged at both sides of a hole cavity of the positioning holes (111).

3. The speed resistor for an automotive air conditioner according to claim 2, characterized in that: A middle part of the shell (210) is provided with a plurality of heat dissipation grooves (211) for facilitating heat dissipation.

4. The speed resistor for an automotive air conditioner according to claim 1, wherein: A middle part of the limiting block one (220) is provided with a limiting hole (221) in communication with the clamping groove (223), and limiting grooves two (222) are arranged at left and right sides of the limiting hole (221) and are perpendicular to a groove cavity of the clamping groove (223).

5. The speed resistor for an automotive air conditioner according to claim 1, wherein: The bottom plate (110) is arranged in the groove cavity of the clamping groove two (310), positioning rods (340) are arranged at both sides of the groove cavity of the clamping groove two (310), limiting block two (341) is arranged at a middle part of the positioning rods (340) for limiting the locking assemblies (320), and limiting plates (342) are arranged at top parts of the positioning rods (340).

6. The speed resistor for an automotive air conditioner according to claim 2, characterized by: Upper ends of the positioning rods (340) are provided with springs (330) for pushing the locking assemblies (320) downward.

7. The speed resistor for an automotive air conditioner according to claim 6, wherein: The locking assemblies (320) comprise limiting rings (321), and a middle part of each limiting ring (321) is provided with a through hole (322) for limiting the limiting ring (321) in cooperation with the positioning rods (340), two connecting blocks (323) are arranged on an outer wall of the through hole (322), and L-shaped plate bodies (324) are arranged on one side of the connecting blocks (323) for facilitating upward pulling of the limiting rings (321).

8. The speed resistor for an automotive air conditioner according to claim 6, wherein: ​

Images