Chip protection assembly for current sensor

Abstract

The utility model relates to the technical field of current sensors, in particular to a chip protection assembly for a current sensor, which comprises a base used for being supported and mounted on a circuit board, one side, close to the circuit board, of the base is defined as the lower side, the upper side of the base is provided with two parallel side plates, and the two side plates are arranged in parallel. A chip is placed between the two side plates, and the base is provided with a plurality of through holes for pins of the chip to pass through so as to extend into the circuit board; the upper side of the base is further provided with a lap joint part extending towards the interiors of the two side plates, the lap joint part is used for abutting against the lower end face of the chip, the inner side faces of the two side plates are each provided with a protruding strip extending up and down, and the protruding strips on the two side plates are used for clamping the chip from the left side and the right side of the chip; according to the utility model, the technical problem in the prior art that the chip is damaged due to poor positioning and protection effects of the rectangular shell on the chip is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, in particular to a chip protection component for current sensors. Background Art

[0002] A current sensor is a current detection device that can sense the information of the measured current and convert the sensed information into an electrical signal or other required form of information output that meets certain standards according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] Common current sensors can refer to the patent document with authorization announcement number CN218158105U, which discloses a current sensor with a built-in conductive bar. The current sensor includes an injection-molded shell, on which a conductive bar extending in the left and right directions is integrally fixed, the conductive bar having two left and right connection ends and a sensing segment in the middle, and the rear side of the conductive bar on the injection-molded shell is provided with a rear mounting groove; a C-shaped iron core, which is integrally fixed in the injection-molded shell, and the notch of the C-shaped iron core is arranged rearward and is correspondingly mounted outside the corresponding sensing segment; a circuit board assembly, which is fixed in the rear mounting groove, and a rear cover is provided at the notch of the rear mounting groove, the circuit board assembly has a circuit board and a sensing element, the front end of the injection-molded shell has a mounting surface, the mounting surface is integrally fixed with an output terminal, and the output terminal is conductively connected to the circuit board to output the current changes on the conductive bar.

[0004] The aforementioned sensing element, or chip attached to the circuit board, must be protected from physical factors such as mechanical stress, vibration, and impact during the circuit board design and manufacturing process. These physical factors can cause changes in the chip's internal circuit structure, thereby affecting its performance. The chip in the aforementioned current sensor is encased in a rectangular housing, which provides simple protection. However, the rectangular housing is too simple to be effective, enabling only simple positioning and failing to prevent the chip from shaking or even damage due to external forces. Utility Model Content

[0005] The utility model provides a chip protection component for a current sensor, which solves the technical problem in the prior art that a rectangular shell has a poor chip positioning protection effect, thereby causing chip damage.

[0006] To solve the above problems, the chip protection component for the current sensor provided by the present invention adopts the following technical solutions:

[0007] A chip protection assembly for a current sensor includes a base for supporting and mounting on a circuit board. The side of the base closest to the circuit board is defined as the lower side. The upper side of the base has two parallel side plates, and the chip is placed between the two side plates. The base has multiple through-holes for the pins of the chip to pass through and extend into the circuit board.

[0008] The upper side of the base also has a lap portion extending toward the inside of the two side panels, the lap portion is used to abut the lower end surface of the chip, the inner side surfaces of the two side panels have convex strips extending up and down, the convex strips on the two side panels are used to clamp the chip from the left and right sides of the chip.

[0009] The chip protection component for the current sensor provided by the present invention has the following beneficial effects: a space for placing the chip is formed between the two side plates, a plurality of perforations are used to limit the pins of the chip, and the convex strips and overlapping parts extending up and down respectively realize the limitation of the lower end surface and the left and right sides of the chip, so that the base and the two side plates complete the limiting protection of various aspects of the chip, the clamping and positioning effect of the chip is better, the stability of the chip is improved, the probability of chip shaking is reduced, and the technical problem in the prior art that the rectangular shell has poor chip positioning protection effect, which leads to chip damage.

[0010] Furthermore, each side plate has two parallel convex strips, and the distance between the two convex strips is adapted to the dimension of the chip in the width direction.

[0011] Furthermore, the upper end of each convex strip has an inclined surface that slopes from top to bottom and from outside to inside, and the inclined surface forms a flared structure for inserting the chip. The flared structure is more conducive to inserting the chip between the two side plates.

[0012] Furthermore, the connection between each inclined surface and the vertical surface of the convex strip adopts an arc-shaped transition to avoid damaging the chip.

[0013] Furthermore, the perforation is a rectangular hole, which includes a lower base section and an upper expansion section extending from bottom to top and from inside to outside. The expansion section is used to expand the hole area at the upper end of the rectangular hole to facilitate the insertion of the chip pins.

[0014] Furthermore, a U-shaped groove is provided in the middle of the lower end of the base, and the U-shaped groove is connected to each of the through holes.

[0015] Furthermore, the left and right sides of the bottom of the base each have a pin for being inserted into a circuit board.

[0016] Furthermore, the lower end of the plug has a conical portion to facilitate the plugging of the plug onto the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0018] Figure 1 A three-dimensional diagram of the application of the chip protection component for the current sensor provided by the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional diagram of the application of the chip protection component for the current sensor provided by the utility model Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the cooperation between the chip protection component and the chip in this utility model Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the cooperation between the chip protection component and the chip in this utility model Figure 2 ;

[0022] Figure 5 A three-dimensional diagram of the chip protection component for the current sensor provided by the present invention Figure 1 ;

[0023] Figure 6 A three-dimensional diagram of the chip protection component for the current sensor provided by the present invention Figure 2 ;

[0024] Figure 7 A three-dimensional diagram of the chip protection component for the current sensor provided by the present invention Figure 3 .

[0025] Description of reference numerals:

[0026] 1. Base; 2. Circuit board; 3. Side panel; 4. Chip; 5. Pin; 6. Perforation; 7. Overlap; 8. Raised strip; 9. Inclined surface; 10. Base section; 11. Outward expansion section; 12. U-shaped groove; 13. Column; 14. Conical section. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that the main idea of ​​the present invention is that by setting a base 1 and two side panels 3, a space for placing the chip 4 is formed between the two side panels 3, and multiple perforations 6 are used to limit the pins 5 of the chip 4. The upper and lower extending ridges 8 and overlapping parts 7 respectively realize the limitation of the lower end surface and the left and right sides of the chip 4, so that the base 1 and the two side panels 3 complete the limiting protection of the chip 4 in all aspects, the clamping and positioning effect of the chip 4 is better, the stability of the chip 4 is improved, and the probability of the chip shaking is reduced, so as to solve the technical problem in the prior art that the rectangular shell has poor chip positioning protection effect, which leads to chip damage.

[0029] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. The numbers of any elements in the drawings are for illustration only and not for limitation, and any names are for distinction only and do not have any limiting meaning.

[0030] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0031] The embodiment of the chip protection component for the current sensor provided by the present utility model:

[0032] like Figures 1 to 7 As shown, a chip protection component for a current sensor includes a base 1, which is used to support and be installed on a circuit board 2. The side of the base 1 close to the circuit board 2 is defined as the lower side. The upper side of the base 1 has two parallel side panels 3, and the chip 4 is placed between the two side panels 3. The base 1 has multiple through holes 6 for the pins 5 of the chip 4 to pass through and extend into the circuit board 2.

[0033] On this basis, the upper side of the base 1 also has a lap portion 7 extending toward the inside of the two side panels 3, and the lap portion 7 is used to abut the lower end surface of the chip 4. The inner side surfaces of the two side panels 3 have ridges 8 extending up and down, and the ridges 8 on the two side panels 3 are used to clamp the chip 4 from the left and right sides of the chip 4.

[0034] First, the structure of the side panels 3 is described. Each side panel 3 has two parallel ridges 8, and the distance between the two ridges 8 is adapted to the width dimension of the chip 4. In other embodiments, the number of ridges 8 may be other than two, and can be adjusted according to actual needs.

[0035] Regarding the ridges 8 , the upper end of each ridge 8 has an inclined surface 9 that slopes from top to bottom and from outside to inside, and the inclined surface 9 forms a flared structure for inserting the chip 4 . The flared structure is more conducive to inserting the chip 4 between the two side plates 3 .

[0036] At the same time, the junctions between the inclined surfaces 9 and the vertical surfaces of the ridges 8 adopt arc-shaped transitions to avoid damaging the chip 4 .

[0037] In this embodiment, the through-hole 6 is a rectangular hole comprising a base section 10 at the bottom and an expansion section 11 at the top, extending from bottom to top and from inside to outside. The expansion section 11 is used to expand the opening area at the top end of the rectangular hole to facilitate insertion of the pins 5 of the chip 4. In other embodiments, the rectangular hole may not have base sections 10 and expansion sections 11 of different sizes; the rectangular hole may have the same diameter at the top and bottom.

[0038] A U-shaped groove 12 is defined in the middle of the lower end of the base 1 and connects to each of the through-holes 6. This groove facilitates side-viewing of the insertion of the pins 5 of the chip 4 into the circuit board 2. It also reduces the weight of the entire assembly. Alternatively, a U-shaped groove 12 may be provided in other embodiments.

[0039] Finally, regarding the installation of the entire protective assembly and the circuit board 2, the base 1 has a pin 13 on each side of the bottom for insertion into the circuit board 2. The lower end of the pin 13 has a tapered portion 14 to facilitate insertion of the pin 13 into the circuit board 2.

[0040] The working principle of the chip protection component for the current sensor provided by the present invention is: before installing the chip 4, the base 1 is first inserted into the circuit board 2 through the plug-in column 13. When installing the chip 4, it is placed between the two side plates 3. The pins 5 pass through the through-holes 6 and are inserted into the circuit board 2. A space for placing the chip 4 is formed between the two side plates 3. Multiple through-holes 6 are used to limit the pins 5 of the chip 4. The raised strips 8 and the overlapping parts 7 extending up and down respectively realize the limiting of the lower end surface and the left and right sides of the chip 4, so that the base 1 and the two side plates 3 complete the limiting protection of the chip 4 in all aspects, and the clamping and positioning effect of the chip 4 is better, the stability of the chip 4 is improved, and the probability of the chip 4 shaking is reduced.

[0041] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0042] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A chip protection component for a current sensor, characterized in that: The base includes a base for supporting and mounting on a circuit board, wherein the side of the base close to the circuit board is defined as the lower side, and the upper side of the base has two parallel side plates, between which the chip is placed, and the base has a plurality of through holes for the pins of the chip to pass through and extend into the circuit board; The upper side of the base also has a lap portion extending toward the inside of the two side panels, the lap portion is used to abut the lower end surface of the chip, the inner side surfaces of the two side panels have convex strips extending up and down, the convex strips on the two side panels are used to clamp the chip from the left and right sides of the chip.

2. The chip protection assembly for a current sensor according to claim 1, characterized in that: Each side plate has two parallel convex strips, and the distance between the two convex strips is adapted to the dimension of the chip in the width direction.

3. The chip protection assembly for a current sensor according to claim 2, characterized in that: The upper end of each convex strip has an inclined surface which is inclined from top to bottom and from outside to inside, and the inclined surface forms a flared structure for inserting a chip.

4. The chip protection assembly for a current sensor according to claim 3, characterized in that: The junctions between each inclined surface and the vertical surface of the convex strip adopt an arc transition to avoid damaging the chip.

5. The chip protection assembly for a current sensor according to any one of claims 1 to 4, characterized in that: The through hole is a rectangular hole, which includes a lower base section and an upper expansion section extending from bottom to top and from inside to outside. The expansion section is used to expand the hole area at the upper end of the rectangular hole to facilitate the insertion of the chip pins.

6. The chip protection assembly for a current sensor according to any one of claims 1 to 4, characterized in that: A U-shaped groove is provided in the middle of the lower end of the base, and the U-shaped groove is connected to each of the through holes.

7. The chip protection assembly for a current sensor according to any one of claims 1 to 4, characterized in that: The left and right sides of the bottom of the base are respectively provided with a plug-in column for being inserted into the circuit board.

8. The chip protection assembly for a current sensor according to claim 7, characterized in that: The lower end of the plug post has a conical portion to facilitate the plug post to be inserted into the circuit board.

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