CN218300303U - Board end connection structure and camera module - Google Patents

Abstract

A board terminal connection structure for connecting a printed circuit board and a connection terminal which is fixedly provided opposite to the printed circuit board; the board end connection structure includes an elastic connection portion having conductivity and electrically connected to the printed circuit board and the connection terminal at the same time; the plate end connection structure is characterized in that: in an assembled state of the connection terminal and the printed circuit board, the elastic connection portion is compressed from a relaxed state to a compressed state. According to this aspect, it is possible to provide a plate end connecting structure that simplifies the structure and effectively absorbs tolerances.

Description

Board end connection structure and camera module

Technical Field

The utility model relates to a floating board end joint construction and have this board end joint construction's the module of making a video recording that can the active absorption tolerance.

Background

Along with the high-speed development of the automobile industry, the vehicle-mounted camera shooting application technology is mature day by day, the automobile is equipped with the camera shooting module as an advanced driving auxiliary system, the camera shooting module generally has a shell, the inner cavity of the shell is fixedly provided with a printed circuit board, and the printed circuit board needs to be electrically connected with a connector which is also fixed on the shell. The connector is connected with a component on the side of the vehicle body and used for supplying power and transmitting signals to the camera module.

A common connection method is to connect the printed wiring board with a connector fixed to the housing by a board end connection member. On the one hand, because the plate end connecting component is additionally arranged, the structural complexity of the camera module is increased. On the other hand, there is inevitably tolerance between the printed circuit board and the housing and between the housing and the connector during the machining and assembling process, thereby forming a tolerance chain, and causing the tolerance to be accumulated between the printed circuit board and the connector.

Specifically, there may be a displacement tolerance between the printed circuit board and the connector in a direction perpendicular to the printed circuit board, a displacement tolerance in a plane parallel to the printed circuit board, and a certain rotational torque and tolerance around the central axis. These tolerances have reduced the precision of assembly, have reduced the structural stability of whole module and the quality of camera formation of image.

Therefore, in the related art, it is an object to simplify the structure and effectively absorb the tolerance, and to ensure the mounting accuracy and the image quality.

Disclosure of Invention

An object of the utility model is to provide a can simplify the structure and absorb tolerance's floating board end connection structure. In order to achieve the above object, one aspect of the present invention is a board end connection structure for connecting a printed circuit board and a connection terminal, the connection terminal being disposed relatively fixedly to the printed circuit board; the board end connection structure includes an elastic connection portion having conductivity and electrically connected to the printed circuit board and the connection terminal at the same time; the plate end connection structure is characterized in that: in an assembled state of the connection terminal and the printed circuit board, the elastic connection portion is compressed from a relaxed state to a compressed state.

In a preferred mode, in a state where the connection terminal is assembled with the printed circuit board, the elastic connection portion is compressed from a relaxed state to a compressed state in a direction perpendicular to the printed circuit board.

According to the technical scheme, the floating connection between the printed circuit board and the connecting terminal can be realized, and the tolerance in the assembling process is further absorbed.

In a preferred form, the resilient connecting portion is a coil spring.

According to the technical scheme, the coil spring can be elastically deformed to absorb tolerance and is convenient to mount and position.

In a preferred embodiment, the plurality of elastic connection portions are provided, and an insulating stopper portion for restricting contact between the adjacent elastic connection portions is provided between the adjacent elastic connection portions.

According to the technical scheme, the number and the position distribution of the elastic connecting parts are reasonably set, so that more stable assembly between the connecting terminal and the printed circuit board can be realized while tolerance is absorbed.

In one preferred embodiment, the present invention includes: the supporting pieces extend in the direction perpendicular to the printed circuit board and are the same as the elastic connecting portions in number, the supporting pieces are used for supporting and positioning the coil springs, and one end of each supporting piece is fixedly connected with the printed circuit board or the connecting terminal.

According to the technical scheme, the supporting piece can support and position the elastic connecting part, so that the elastic connecting part cannot generate overlarge deformation and position offset, and meanwhile, a limiting function can be provided between the printed circuit board and the connecting terminal, and the printed circuit board and the connecting terminal cannot be too close to each other.

In a preferred mode, the support member is a stem inserted into an axial hole in the inside of the coil spring.

According to the technical scheme, the core column is easier to insert into the shaft hole of the coil spring, and is convenient to connect and position.

In a preferred mode, the stem is an elastic member having a larger elastic coefficient in a direction perpendicular to the printed circuit board than that of the coil spring.

According to the technical scheme, the core column can bear certain compression and deformation while supporting and positioning, and tolerance can be better absorbed.

In a preferred embodiment, a cross-sectional dimension of one end of the stem fixedly connected to the printed circuit board or the connection terminal is larger than a cross-sectional dimension of the other end of the stem.

According to the technical scheme, the core column is thick at one end and thin at the other end, and can be more conveniently inserted into the shaft hole of the coil spring, so that the coil spring is convenient to mount and position.

In a preferred mode, the support member is a sleeve fitted around an outer periphery of the elastic connection portion.

According to aforementioned technical scheme, support piece cover establish with elastic connection portion be the outside, can provide the support location, when support piece made for insulating material, can also provide insulating, avoid two adjacent elastic connection portion mutual contacts and the short circuit problem that leads to.

In a preferred embodiment, the supporting member is a coil spring sleeved on the outer periphery of the elastic connecting portion and having an elastic coefficient greater than the outer diameter of the elastic connecting portion.

According to the technical scheme, the thick spring and the thin spring are formed, so that the tolerance can be better absorbed, and the supporting and positioning can be provided.

Furthermore, another aspect of the present invention is a camera module, comprising:

the camera is used for collecting external optical signals;

the printed circuit board is used for converting the optical signal collected by the camera into an electric signal;

a connection terminal having a surface parallel to the printed circuit board;

the shell is fixedly connected with the printed circuit board and the connecting terminal;

the camera module is characterized in that:

the board end connection structure is provided.

According to the technical scheme, the camera module which has a simplified structure and can effectively absorb the tolerance in the assembling process can be provided.

Drawings

In order to more clearly illustrate the present invention, the drawings of the present application will be described and illustrated. It is apparent that the drawings in the following description illustrate only some aspects of some exemplary embodiments of the invention, and that other drawings may be derived therefrom by those skilled in the art without the exercise of inventive faculty.

Fig. 1 is a cross-sectional view of an exemplary image pickup module including a plate end connection structure.

Fig. 2 is an enlarged view of an exemplary elastic connection portion.

Fig. 3 is an enlarged view of an exemplary elastic connecting portion and stopper portion.

Fig. 4 is a partial cross-sectional view of an exemplary camera module including a support.

Fig. 5 is a partial cross-sectional view of an exemplary spring pocket spring.

Description of the drawings:

100-camera module, 1-elastic connection part, 11-first elastic connection part, 12-second elastic connection part, 2-printed circuit board, 20-photosensitive chip, 21-positive electrode pad, 22-negative electrode pad, 3-connection terminal, 30-external pin, 31-terminal surface, 32-terminal groove, 33-limiting part, 34-supporting part, 341-first supporting part, 342-second supporting part, 35-terminal base body, 4-lens, 5-shell, 51-first shell, 52-two shells and 53-screw.

Detailed Description

Various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: unless otherwise indicated, the relative arrangement of components and steps, numerical expressions and numerical values, etc., set forth in these embodiments should be construed as merely illustrative, and not a limitation.

The use of the word "comprising" or "comprises" and the like in this disclosure is intended to mean that the elements listed before the word encompass the elements listed after the word and does not exclude the possibility that other elements may also be encompassed.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For components, parameters such as specific models of components, interrelationships between components, and control circuitry not described in detail in this section, can be considered techniques, methods, and apparatus known to one of ordinary skill in the relevant art, but where appropriate, should be considered as part of the specification.

(Overall Structure)

The overall structure and technical problem of the present invention will be described below with reference to fig. 1. Fig. 1 is a sectional view of a camera module including a plate end connection structure.

As shown in fig. 1, the image pickup module 100 includes a lens 4, a housing 5, a printed circuit board 2, and a connection terminal 3. The lens 4 is fixed to the housing 5 and is disposed toward a subject. The housing 5 may be integrally formed, or as shown in fig. 1, includes a first housing 51 and a second housing 52, and the housing 5 has an inner cavity for accommodating the printed circuit board 2. The first housing 51 and the second housing 52 can be connected by welding, bonding, etc., and will not be described herein.

For example, the printed circuit board 2 is substantially flat and is fixedly connected to the first housing 51 by a screw 53, and the photosensitive chip 20 is welded to a surface of the printed circuit board 2 facing the lens 4 to convert an optical signal picked up by the lens 4 into an electrical signal. The connection terminal 3 is a connector between the camera module 100 and a component on the vehicle body side, and is used to supply power to the camera module 100 and transmit signals between the camera module 100 and the component on the vehicle body side (e.g., ECU). The connection terminal 3 has a terminal surface 31 facing the printed circuit board 2 and substantially parallel to the printed circuit board 2, and the connection terminal 3 is fixedly connected to the second housing 52 and can be connected to a cable connector of the in-vehicle device through an external PIN 30 such as a PIN to transmit signals and electric power. Thereby, the connection terminals 3 and the printed circuit board 2 are indirectly fixed to each other through the first and second housings 1 and 2. In other words, the connection terminals 3 and the printed circuit board 2 have a relatively fixed positional relationship therebetween. It is understood that the connection terminals 3 and the printed circuit board 2 may be directly fixedly connected by, for example, screwing, and only the above-described indirect connection is described here for convenience of description.

For example, when the connection terminal 3 and the second housing 52 are fixedly connected, the terminal base 35 of the connection terminal 3 may be a part of the wall of the second housing 52 as shown in fig. 1, that is, the terminal base 35 of the connection terminal 3 may be joined to the first housing 1 and the second housing 2 to form an internal cavity of the housing 5. Therefore, an extra connector structure can be avoided, the structure of the camera module 100 is further simplified, and materials and processing cost are saved.

In actual processing and assembling process, between printed circuit board 2 and first casing 1, between first casing 1 and second casing 2, between second casing 2 and connecting terminal 3, every link all can have certain tolerance, and the tolerance accumulation of each link has formed a tolerance chain, makes stability and the accuracy of being connected between printed circuit board 2 and the connecting terminal 3 reduce, and then can influence the overall stability of camera module 100 and the imaging quality of camera lens 4. Specifically, during mounting, the printed circuit board 2 may be close to or distant from the connection terminals 3 in a direction perpendicular to the printed circuit board 2, may be offset back and forth and left and right or may be rotated about the central axis in a direction parallel to the printed circuit board 2, and these affect the connection accuracy of the printed circuit board 2 and the connection terminals 3, which in turn may affect the stability of the overall structure. On the other hand, when the connection structure between the connection terminal 3 and the printed circuit board 2 is a hard connection structure, the distance tolerance and the deflection tolerance between the connection terminal 3 and the printed circuit board 2 cannot be absorbed.

(elastic connecting part)

In order to solve the above problem, at least one elastic connection portion 1 is provided between the printed circuit board 2 and the connection terminal 3. The elastic connecting portion 1 will be specifically described below with reference to fig. 2 and 3. Fig. 2 is an enlarged view of the elastic connection portion, and fig. 3 is an enlarged view of the elastic connection portion and the stopper portion.

As a preferred mode, the elastic connection portion 1 is a coil spring extending in a direction perpendicular to the printed circuit board 2, and actually, the elastic connection portion 1 may be a plate spring or other elastic member, and for the sake of simplicity, only the coil spring will be described below as an example. Generally, the elastic connection portion 1 may be a material having a certain elastic force and conducting signals and electric energy, such as copper, stainless steel, etc., and the material and the outer surface thereof are not particularly limited.

As shown in fig. 2, the number of the illustrated elastic connection portions 1 is 2, that is, the first elastic connection portion 11 and the second elastic connection portion 12 are provided at an interval. It is understood that the number and the position distribution of the elastic connection portions 1 may be adjusted according to actual needs without being particularly limited, and by properly setting the number and the positions of the elastic connection portions 1, it is possible to achieve more stable assembly between the connection terminals 3 and the printed circuit board 2 while absorbing tolerance. For the sake of simplicity, the following description will be made in detail by taking only 2 elastic connecting portions 1 as an example.

In one embodiment, the first elastic connection portion 11 and the second elastic connection portion 12 are both fixedly connected to the printed circuit board 2, for example, as shown in fig. 2, the printed circuit board 2 is provided with a positive electrode pad 21 and a negative electrode pad 22 on a plate surface facing the connection terminal 3, and the first elastic connection portion 11 and the second elastic connection portion 12 are respectively welded to the positive electrode pad 21 and the negative electrode pad 22 and electrically connected to a circuit inside the printed circuit board 2 through the positive electrode pad 21 and the negative electrode pad 22.

As another example, as shown in fig. 3, the first elastic connection portion 11 and the second elastic connection portion 12 are fixedly connected to the connection terminal 3, and ends of the first elastic connection portion 11 and the second elastic connection portion 12 may be welded or embedded in the terminal recess 32 of the connection terminal 3, as long as they can be electrically connected to the external pin 30 of the connection terminal 3. The number of the external pins 30 may be 1 or multiple, and is not described herein for the reason of being not the key point of the present technical solution.

For simplicity, only the first elastic connection portion 11 and the second elastic connection portion 12 are fixedly connected to the printed circuit board 2. It can be understood that the same applies to the case where both the first elastic connecting portion 11 and the second elastic connecting portion 12 are fixedly connected to the connection terminal 3.

It should be noted that the length of the elastic connection portion 1 in the direction perpendicular to the printed circuit board 2 in the relaxed state is larger than the distance between the printed circuit board 2 and the connection terminal 3 in the assembled state. Thereby, in the assembled state of the printed circuit board 2 and the connection terminals 3, the elastic connection portion 1 is compressed from the relaxed state to the compressed state. When one end of the elastic connection portion 1 is fixed to the printed circuit board 2, the other end of the elastic connection portion 1, which is not fixedly connected, abuts against the terminal surface 31 of the connection terminal 3 and is electrically connected to the external pin 30. When one end of the elastic connection portion 1 is fixed to the connection terminal 3, the other end of the elastic connection portion 1, which is not fixedly connected, abuts against the printed circuit board 2 and is electrically connected to the internal circuit of the printed circuit board 2.

At this time, since the elastic connection portion 1 has a certain amount of deformation in a direction perpendicular to the printed circuit board 2, it is possible to absorb the tolerance of the printed circuit board 2 and the connection terminal 3 in that direction. Meanwhile, the elastic connection portion 1 can bear front-back, left-right and deformation and offset in the radial direction and can bear a certain rotation torque around the axial direction, so that the displacement tolerance of the printed circuit board 2 and the connection terminal 3 in the radial direction or the rotation offset around the axial direction can be absorbed.

(Limit part)

As shown in fig. 3, under the bidirectional compression of the printed circuit board 2 and the connection terminal 3, the first elastic connection portion 11 and the second elastic connection portion 12 are easily deformed and offset in the radial direction, and when the offset reaches a certain degree, the first connection portion 11 is easily contacted with the second elastic connection portion 12, so that a short circuit phenomenon occurs. In order to avoid this problem, as an embodiment, an insulating stopper 33 is provided between the adjacent first elastic connecting portion 11 and second elastic connecting portion 12. The stopper portion 33 is made of an insulating material such as resin, and is not particularly limited herein. Further, in order to achieve better insulation effect, the connection terminal 3 side is also preferably made of an insulating material such as resin, for example, the material of the connection terminal 3 is a conductor such as metal, and an insulating material protection is added at the matching position of the external pin 30 and the elastic connection portion 1 to avoid short circuit.

On a cross section approximately parallel to the printed circuit board 2, at least a part of the projection of the limiting portion 33 is located between the projections of the first elastic connecting portion 11 and the second elastic connecting portion 12 on the cross section. For example, the position-limiting portion 33 may be a straight plate disposed between the first elastic connecting portion 11 and the second elastic connecting portion 12, or may be a sleeve disposed on the periphery of the first connecting portion 11 and/or the second connecting portion 12, such as a circle, a polygon, a horizontal shape, an infinite shape, etc. in a top view, as long as the contact between the first elastic connecting portion 11 and the second elastic connecting portion 12 can be avoided.

In a direction perpendicular to the printed circuit board 2, the stopper portion 33 extends from the terminal surface 31 of the connection terminal 3 in a direction of the printed circuit board 2, for example, and an end portion of the stopper portion 33 close to the printed circuit board 2 is spaced apart from the printed circuit board 2. Preferably, the stopper portion 33 is integrally formed with the connection terminal 3 for easy processing and assembly. It is understood that the position-limiting portion 33 can also be fixedly connected to the printed circuit board 2 and extend toward the direction of the connection terminal 3, which will not be described in detail herein.

In general, in the assembled state of the printed circuit board 2 and the connection terminals 3, the dimension of the elastic connection portion 1 in the direction perpendicular to the printed circuit board 2 after being compressed should be larger than the dimension of the stopper portion 33 in the direction. Otherwise, both ends of the positioning portion 33 will abut against the printed circuit board 2 and the connection terminal 3 at the same time in the above-described assembled state, which is disadvantageous for the absorption of tolerance by the elastic connection portion 1.

In addition, in order to better avoid the problem of short circuit, a manner of coating an insulating layer on the outer surface of the elastic connection portion 1 may also be adopted, which is not described in detail herein.

(support member)

The support member will be described in detail with reference to fig. 4 and 5. Fig. 4 is a partial cross-sectional view of a camera module including a support. Fig. 5 is a partial cross-sectional view of a spring pocket spring.

Since the elastic connection portion 1 has a large elasticity, it is liable to undergo an excessive positional deviation in the radial direction, resulting in excessive instability of the connection between the printed circuit board 2 and the connection terminals 3. Preferably, between the printed circuit board 2 and the connection terminal 3, a support member 34 extending in a direction substantially perpendicular to the printed circuit board 2 is provided, and one end of the support member 34 is fixedly connected to the printed circuit board 2 or the connection terminal 3. The support member 34 functions as a skeleton member of the elastic connecting portion 1. The material of the support 34 is preferably conductive, but may be insulating.

Generally, in the assembled state of the printed wiring board 2 and the connection terminal 3, one end of the support member 34 is fixedly connected to the connection terminal 3, and the other end extends in the direction of the printed wiring board 2 while being spaced from the printed wiring board 2; alternatively, one end of the support 34 is fixedly connected to the printed circuit board 2, and the other end extends in the direction of the connection terminal 3 while being spaced apart from the connection terminal 3. This arrangement is mainly for facilitating the fitting and mounting positioning of the support 34 and the elastic connection terminal 1 to each other. The above-mentioned spacing distance between the support member 34 and the printed circuit board 2 or the connection terminal 3, which is required to be obtained by repeated calculations and experiments, may be, for example, 0.8mm.

On the one hand, the support 34 provides support for the flexible connecting part 1 so that the flexible connecting part 1 does not deflect too much in a radial cross section. On the other hand, the supporting member 34 can also perform a certain supporting and limiting function for the printed circuit board 2 and the connection terminal 3, that is, when the printed circuit board 2 and the connection terminal 3 are too close to each other to contact with the supporting member 34, the supporting member 34 supports the printed circuit board 2 and the connection terminal 3, respectively, to provide stable support for the two and prevent the two from being excessively close to each other.

In general, in the assembled state of the printed circuit board 2 and the connection terminals 3, the dimension in the direction perpendicular to the printed circuit board 2 after the elastic connection portion 1 is compressed should be larger than the dimension of the support member 34 in that direction. Otherwise, both ends of the support member 34 will come into contact with both the printed circuit board 2 and the connection terminal 3 in the above-described assembled state, which is disadvantageous for tolerance absorption by the elastic connection portion 1.

The number and the positional distribution of the supporting pieces 34 correspond one-to-one to the number and the positional distribution of the elastic connecting portions 1. For example, as shown in fig. 4, the supporting member 34 includes a first supporting member 341 and a second supporting member 342 disposed in one-to-one correspondence with the first elastic connecting portion 11 and the second elastic connecting portion 12, and respectively supports and positions the first elastic connecting portion 11 and the second elastic connecting portion 12.

As an example, the support pieces 34 are stems inserted into the shaft holes of the elastic connection portion 1 in one-to-one correspondence as shown in fig. 4. During assembly, the support 34 is inserted into the axial hole of the corresponding elastic joint 1, and supports the elastic joint 1 from the inside, preventing the elastic joint 1 from being excessively deviated in the direction of the radial section.

The support member 34 may be a rigid member or an elastic member when used as a stem. In the case of the elastic member, the supporting member 34 can undergo a certain compression and deformation, and further, when the printed circuit board 2 and the connection terminal 3 are located at a short distance so as to be respectively abutted against both ends of the supporting member 34, the supporting member 34 and the elastic connection portion 1 together absorb more tolerance. For example, the elastic modulus of the support member 34 in the direction substantially perpendicular to the printed circuit board 2 is larger than the elastic modulus of the elastic connection portion 1 in this direction. Therefore, the printed circuit board 2 can perform the functions of supporting and limiting the printed circuit board 2 and the connection terminal 3 in the process of approaching the connection terminals, thereby preventing excessive approaching. Otherwise, during the assembly process, the printed circuit board 2 compresses the elastic connection portion 1 and approaches the connection terminal 3, and since the support member 34 has a smaller elastic coefficient in a direction perpendicular to the printed circuit board 2 than the elastic connection portion 1, the printed circuit board 2 can easily compress the support member 34 and thus approach the connection terminal 3 continuously.

Preferably, the support member 34 is used as a stem, and has a larger cross-sectional size at one end fixedly connected to the printed circuit board 2 or the connection terminal 3 than at the other end. For example, when the elastic connection portion 1 is fixedly connected with the printed circuit board 2, the support member 34 is preferably fixedly connected with the connection terminal 3. At this time, the sectional size of the end of the support member 34 near the printed circuit board 2 is smaller than the sectional size of the other end of the support member 34. That is, the supporting member 34 is thin and thick, the thinner end is used for being inserted into the shaft hole of the elastic connecting portion 1, so that the assembly is more convenient, and the thicker end is in interference fit with the elastic connecting portion 1 preferably, so that the installation is more firm.

As another embodiment, the supporting members 34 are sleeves that are sleeved on the outer circumference of the elastic connection portion 1 in a one-to-one correspondence manner. In a radial section of the elastic connection 1, the projection of the elastic connection 1 lies within the projection of the support 34. The cross-sectional shape of the supporting member 34 may be circular, polygonal, or other various shapes, and may be a rigid element or an elastic element.

In this case, the supporting member 34 may also be made of an insulating material such as resin, and the supporting member 34 may also serve as the limiting portion 33, that is, the two functions are combined together, so as to provide support and positioning for the elastic connection portions 1 and prevent the adjacent elastic connection portions 1 from contacting and short-circuiting.

For example, the stay 34 is a coil spring having an inner diameter larger than an outer diameter of the elastic connection portion 1. As shown in fig. 5, the elastic connecting portion 1 is inserted into the support member 34, and the support member 34 and the elastic connecting portion 1 are both in a coil spring structure, thereby constituting a thick spring-in-thin spring type.

Further, in a preferred embodiment, the spring constant of the support member 34 in the direction perpendicular to the printed circuit board 2 is larger than the spring constant of the elastic connection portion 1 in the direction, so that the support and the stopper of the printed circuit board 2 can be more effectively exerted when the printed circuit board is close to the connection terminal 3. Meanwhile, in this direction, the dimension of the support member 34 in the relaxed state should be smaller than the dimension of the elastic connection portion 1 in the relaxed state, so that during the assembly process, when the printed circuit board 2 approaches the connection terminal 3, the elastic connection portion 1 first abuts against the connection terminal 3 and is compressed, ensuring the conduction of the circuit.

It should be understood that the above-mentioned embodiments are only used for explaining the present invention, the protection scope of the present invention is not limited thereto, and any person skilled in the art can modify, replace, combine the technical solution of the present invention and the inventive concept within the technical scope of the present invention.

Claims (11)

1. A board terminal connection structure for connecting a printed circuit board and a connection terminal which is fixedly provided opposite to the printed circuit board;

the board end connection structure includes an elastic connection portion having conductivity and electrically connected to the printed circuit board and the connection terminal at the same time;

the plate end connection structure is characterized in that:

in an assembled state of the connection terminal and the printed circuit board, the elastic connection portion is compressed from a relaxed state to a compressed state.

2. The plate end connection configuration according to claim 1,

in an assembled state of the connection terminal and the printed circuit board, the elastic connection portion is compressed from a relaxed state to a compressed state in a direction perpendicular to the printed circuit board.

3. The plate end connection configuration according to claim 2,

the elastic connecting part is a coil spring.

4. The plate end connection configuration according to claim 1,

the elastic connecting parts are multiple, and an insulated limiting part is arranged between every two adjacent elastic connecting parts and used for limiting the contact between every two adjacent elastic connecting parts.

5. The plate end connection structure according to claim 3, comprising:

the supporting pieces extend in the direction perpendicular to the printed circuit board and are the same as the elastic connecting portions in number and are used for supporting and positioning the coil spring, and one end of each supporting piece is fixedly connected with the printed circuit board or the connecting terminal.

6. The plate end connection configuration according to claim 5,

the support member is a stem inserted into a shaft hole in the inside of the coil spring.

7. The plate end connection configuration according to claim 6,

the stem is an elastic member having a larger elastic coefficient in a direction perpendicular to the printed circuit board than that of the coil spring.

8. The plate end connection configuration according to claim 6,

the sectional dimension of the core column at one end fixedly connected with the printed circuit board or the connecting terminal is larger than that of the other end of the core column.

9. The plate end connection configuration according to claim 5,

the support piece is a sleeve sleeved on the periphery of the elastic connecting part.

10. The plate end connection construction of claim 5,

the supporting piece is a coil spring which is sleeved on the periphery of the elastic connecting portion and the elastic coefficient of the coil spring is larger than the outer diameter of the elastic connecting portion.

11. A camera module, comprising:

the camera is used for collecting external optical signals;

the printed circuit board is used for converting the optical signal collected by the camera into an electric signal;

a connection terminal having a surface parallel to the printed circuit board;

the shell is fixedly connected with the printed circuit board and the connecting terminal;

the camera module is characterized in that:

a plate end connection structure according to any one of claims 1 to 10.

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