Buckle type grounding elastic sheet and electrical equipment

Abstract

The utility model provides a buckle type grounding elastic sheet and electrical equipment, and relates to the technical field of electrical equipment, the buckle type grounding elastic sheet provided by the utility model comprises a frame part, a clamp spring part, an elastic tongue and a fixing part; the frame part is unfolded along a yz plane, the clamping spring part is connected to the frame part, and the clamping spring part protrudes in the x direction relative to the frame part; the frame part, the elastic tongue and the fixing part are sequentially connected in the y direction. The elastic tongue is used for elastically stretching out and drawing back in the y direction. Wherein the x direction, the y direction and the z direction are perpendicular to one another. The buckling type grounding elastic sheet can adapt to dimensional tolerance along the y direction, and can realize elastic expansion in the x direction when the clamping spring part is inserted and matched along the y direction, so that the inserting stability of the grounding elastic sheet is improved, and the circuit grounding reliability of electrical equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric equipment technical field especially is a kind of buckle type ground spring and electric appliance. BACKGROUND

[0002] Electric appliance usually needs to be grounded by shell, for example, vehicle-mounted charger, its grounding mode usually needs to adopt bolt to connect circuit, and the grounding connection process is not easy to operate, so that the assembly efficiency is low. In addition, some grounding modes using spring are compressed between circuit board and metal shell, but the spring is compressed to cause the elasticity to weaken in long-term use, and the vibration of working environment is superimposed, so that the spring is prone to looseness and grounding failure. SUMMARY

[0003] The utility model aims at providing a buckle type ground spring and electric appliance to alleviate the technical problem that the existing ground spring is prone to looseness due to the weakening of elasticity in long-term use.

[0004] In a first aspect, the utility model provides a buckle type ground spring, which comprises a frame portion, a clasp spring portion, a spring tongue and a fixing portion.

[0005] The frame portion is unfolded along the yz plane, the clasp spring portion is connected to the frame portion, and the clasp spring portion protrudes along the x direction relative to the frame portion.

[0006] The frame portion, the spring tongue and the fixing portion are sequentially connected along the y direction, and the spring tongue is used for elastic expansion and contraction along the y direction.

[0007] Wherein, the x direction, the y direction and the z direction are perpendicular to each other.

[0008] In combination with the first aspect, the utility model provides a first possible implementation manner of the first aspect, wherein the frame portion, the clasp spring portion, the spring tongue and the fixing portion are configured as an integrated structure.

[0009] In combination with the first aspect, the utility model provides a second possible implementation manner of the first aspect, wherein the frame portion has a hollow slot, and the clasp spring portion is located in the hollow slot.

[0010] The two ends of the clasp spring portion in the y direction are connected to the frame portion respectively.

[0011] In combination with the second possible implementation manner of the first aspect, the utility model provides a third possible implementation manner of the first aspect, wherein the clasp spring portion is bent to form a protruding portion protruding in the x direction and a recessed portion recessed away from the x direction.

[0012] In combination with the first aspect, the utility model provides a fourth possible implementation mode of first aspect, wherein, the frame portion is equipped with the guide portion with one end away from the elastic tongue,

[0013] The size of the guide portion in the z direction decreases from the end close to the elastic tongue to the end away from the elastic tongue.

[0014] In combination with the first aspect, the utility model provides a fifth possible implementation mode of first aspect, wherein, the elastic tongue has the wave shape structure along the y direction.

[0015] In combination with the first aspect, the utility model provides a sixth possible implementation mode of first aspect, wherein, one end of the frame portion connecting the elastic tongue is provided with the recess, and the elastic tongue is located in the recess.

[0016] In combination with the first aspect, the utility model provides a seventh possible implementation mode of first aspect, wherein, one end of the frame portion close to the fixed portion is provided with the accommodation slot corresponding to the fixed portion.

[0017] In combination with the first aspect, the utility model provides an eighth possible implementation mode of first aspect, wherein, the fixed portion is provided with the pin parallel to the xz plane.

[0018] The second aspect provides an electric appliance equipment, comprising: a shell, a circuit board and the buckle type ground spring of the first aspect,

[0019] The shell is provided with a ground slot, the fixed portion is connected to the circuit board, the circuit board is installed in the shell, and the frame portion and the snap spring portion are jointly inserted into the ground slot.

[0020] The utility model embodiment has the following beneficial effects: the frame portion along the yz plane is expanded, the snap spring portion is connected to the frame portion, the snap spring portion is protruded along the x direction relative to the frame portion, the frame portion, the elastic tongue and the fixed portion are sequentially connected along the y direction, the elastic tongue is elastically stretched along the y direction, which can not only adapt to the size tolerance along the y direction, but also can be elastically expanded in the x direction when the snap spring portion is inserted and matched along the y direction, thereby improving the stability of the ground spring.

[0021] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is made as follows in combination with the drawings. DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the specific embodiments or related art of the present application, the drawings needed to be used in the specific embodiments or related art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The schematic view of the buckle type grounding spring provided by the embodiment of the present application is shown in the figure.

[0024] Figure 2 The cross-sectional view of the electrical appliance provided by the embodiment of the present application is shown in the figure.

[0025] Icon: 100-frame part; 101-hollow groove; 102-guide part; 103-groove; 104-clearance groove; 200-spring part; 201-protruding part; 202-recessed part; 300-spring tongue; 400-fixing part; 401-lead; 500-housing; 501-grounding slot; 600-circuit board. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be pointed out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only 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, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, such as no separate marking, should be understood as the basic quantities of the international system of units, or the derived quantities derived from the basic quantities by multiplication, division, differentiation or integration and other mathematical operations.

[0028] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0029] As Figure 1 Indicated in the utility model embodiment provided by buckle type ground spring, including: frame part 100, card spring part 200, elastic tongue 300 and fixed part 400;Frame part 100 along yz plane development, card spring part 200 is connected to frame part 100, and card spring part 200 is protruded along x direction relative to frame part 100;Frame part 100, elastic tongue 300 and fixed part 400 are sequentially connected along y direction, and elastic tongue 300 is used to elastically stretch along y direction;Wherein, x direction, y direction and z direction are perpendicular to each other.

[0030] The buckle type ground spring described in the embodiment can be plugged along the y direction, and the elastic tongue 300 can realize elastic shock absorption in the y direction during plugging and after plugging assembly, and the elastic tongue 300 can absorb the dimensional tolerance in the y direction, thereby maintaining the stability of the frame part 100 and the card spring part 200 relative to the mating piece. In addition, the card spring part 200 can be expanded in the x direction in the adapted slot, thereby improving the plugging stability of the ground spring.

[0031] In the embodiment of the utility model, the frame part 100, the card spring part 200, the elastic tongue 300 and the fixed part 400 are configured as an integral structure.

[0032] When processing, the metal plate can be used to form the frame part 100, the card spring part 200, the elastic tongue 300 and the fixed part 400 by cutting and stamping processes, which are easy to process and have stable and reliable structure.

[0033] As Figure 1 Indicated, frame part 100 has hollow slot 101, and card spring part 200 is located in hollow slot 101;The two ends of card spring part 200 in y direction are connected with frame part 100 respectively.

[0034] The card spring part 200 can be elastically deformed to be compressed in the x direction, and the card spring part 200 occupies the internal space of the hollow slot 101, so that the structure is more compact.

[0035] Further, the card spring part 200 is bent to form a protruding part 201 protruding in the x direction and a recessed part 202 recessed away from the x direction.

[0036] The spring part 200 is limited in the hollow groove 101 in the y direction, so as to maintain the stability of the convex and concave shape of the spring part 200 in the x direction, the convex part 201 can be expanded and abutted in the corresponding notch, so as to realize reliable contact fit, especially suitable for circuit grounding.

[0037] In the optional embodiment, the frame part 100 is provided with a guide part 102 away from one end of the elastic tongue 300; the size of the guide part 102 in the z direction decreases from the end close to the elastic tongue 300 to the end away from the elastic tongue 300, which can realize the guidance of the frame part 100, and facilitate the abutment and insertion of the frame part 100 into the corresponding notch.

[0038] In the optional embodiment, the elastic tongue 300 has a wave shape structure extending in the y direction, which can not only be compressed or stretched in the y direction to realize elastic deformation, but also can produce slight bending, so as to produce deflection in the x direction, so as to adapt to the assembly tolerance of the peripheral device.

[0039] Further, one end of the frame part 100 connected with the elastic tongue 300 is provided with a groove 103, and the elastic tongue 300 is located in the groove 103, which improves the compactness of the structure.

[0040] In addition, one end of the frame part 100 close to the fixed part 400 is provided with a clearance groove 104 corresponding to the fixed part 400, and when the elastic tongue 300 is compressed in the y direction, the frame part 100 can be inserted into the clearance groove 104. In addition, for the case that the plugging operation force is large, pressure can also be directly applied to the frame part 100, so as to avoid affecting the plugging action due to the elastic compression of the elastic tongue 300.

[0041] In the optional embodiment, the fixed part 400 is provided with a pin 401 parallel to the xz plane, the pin 401 can be formed in a bending manner and provided with a plurality of pins, in addition, one of the two adjacent pins 401 can be folded by 90 degrees to one side relative to the yz plane, and the other can be folded by 90 degrees to the other side relative to the yz plane, the projection of the frame part 100 and the fixed part 400 in the xy plane is combined to form an approximate T-shaped structure, and under the condition that a plurality of pins 401 are welded and fixed, the stability of the overall buckle type grounding spring can be improved.

[0042] As Figure 1 and Figure 2As shown, the electric appliance provided by the utility model embodiment comprises: a shell 500, a circuit board 600 and the snap buckle type grounding spring sheet recorded in the above embodiment; the shell 500 is provided with a grounding slot 501, the fixed part 400 is connected to the circuit board 600, the circuit board 600 is installed in the shell 500, and the frame part 100 and the clasp spring part 200 are jointly inserted into the grounding slot 501. The tongue 300 can absorb the assembly tolerance between the shell 500 and the circuit board 600 along the y direction, the clasp spring part 200 can be expanded in the x direction and be tightly arranged in the grounding slot 501, and the grounding is more stable and reliable.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the utility model embodiments.

Claims

1. A snap-in ground waf er, characterized by, The utility model relates to a buckle type grounding spring, comprising: a frame part (100), a clamping spring part (200), a spring tongue (300) and a fixing part (400); the frame part (100) is unfolded along the yz plane, the clamping spring part (200) is connected to the frame part (100), and the clamping spring part (200) protrudes along the x direction relative to the frame part (100); the frame part (100), the spring tongue (300) and the fixing part (400) are sequentially connected along the y direction, and the spring tongue (300) is used for elastic expansion along the y direction; wherein the x direction, the y direction and the z direction are perpendicular to each other.

2. The snap-in ground wafers of claim 1, wherein, The frame part (100), the clamping spring part (200), the spring tongue (300) and the fixing part (400) are configured as an integrated structure.

3. The snap-in ground wafers of claim 1 or 2, wherein, The frame part (100) has a hollow groove (101), and the clamping spring part (200) is located in the hollow groove (101); the two ends of the clamping spring part (200) in the y direction are connected to the frame part (100) respectively.

4. The snap-in ground wafers of claim 3, wherein, The clamping spring part (200) is bent to form a protruding part (201) protruding in the x direction and a recessed part (202) recessed away from the x direction.

5. The snap-in ground wafers of claim 1, wherein, The frame part (100) is provided with a guide part (102) at one end away from the spring tongue (300); the size of the guide part (102) in the z direction decreases from the end close to the spring tongue (300) to the end away from the spring tongue (300).

6. The snap-in ground wafers of claim 1, wherein, The spring tongue (300) has a wave-shaped structure extending in the y direction.

7. The snap-in ground wafers of claim 1, wherein, One end of the frame part (100) connected to the spring tongue (300) is provided with a groove (103), and the spring tongue (300) is located in the groove (103).

8. The snap-in ground wafers of claim 1, wherein, One end of the frame part (100) close to the fixing part (400) is provided with a clearance slot (104) corresponding to the fixing part (400).

9. The snap-in ground wafers of claim 1, wherein, The fixing part (400) is provided with a pin (401) parallel to the xz plane.

10. An electrical appliance, characterized in that The utility model relates to a buckle type grounding spring, comprising: a shell (500), a circuit board (600) and the buckle type grounding spring of any one of claims 1-9; the shell (500) is provided with a grounding slot (501), the fixing part (400) is connected to the circuit board (600), the circuit board (600) is installed in the shell (500), and the frame part (100) and the clamping spring part (200) are jointly inserted into the grounding slot (501).

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